Bugzilla

This is now in nightly 87, and we should have all the pieces needed for an 87 release experiment for pinning from about:welcome.

QA steps (for new functionality in this bug and dependent windows API bug -- but not for the experiment, which has more branches/targeting):

1) install firefox on windows via installer, e.g., https://nightly.mozilla.org/ download link
2) open about:config
3) set `browser.aboutwelcome.overrideContent` pref to desired value (examples below)
4) open about:welcome
5) ensure firefox is pinned/unpinned from taskbar and/or default/not-default browser
6) go through about:welcome onboarding

Potential treatment D branch with combined action button that pins firefox to taskbar and opens windows' default settings dialog where about:welcome shows the next screen when Firefox becomes the default browser
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Pin Firefox to taskbar and open settings"},"primary_button":{"label":"Make Firefox My Primary Browser","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Control branch (no `overrideContent` set) should show "make default" that immediately moves on to import (instead of waiting) as per bug 1691145.

Potential treatment A branch that shows pin on first page then make default on second page (also without waiting), so mainly useful for testing that the single pin action works:
```
{"template":"multistage","screens":[{"id":"AW_PIN_FIREFOX","order":0,"content":{"zap":true,"title":"Pin pin pin!","subtitle":"Subtitle","primary_button":{"label":"Pin Firefox","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_SET_DEFAULT","order":1,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

This is now in nightly 87, and we should have all the pieces needed for an 87 release experiment for pinning from about:welcome.

QA steps (for new functionality in this bug and dependent windows API bug -- but not for the experiment, which has more branches/targeting):

1) install firefox on windows via installer, e.g., https://nightly.mozilla.org/ download link
2) open about:config
3) set `browser.aboutwelcome.overrideContent` pref to desired value (examples below)
4) open about:welcome
5) ensure firefox is pinned/unpinned from taskbar and/or default/not-default browser
6) go through about:welcome onboarding

Potential treatment D branch with combined action button that pins firefox to taskbar and opens windows' default settings dialog where about:welcome shows the next screen when Firefox becomes the default browser
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Pin Firefox to taskbar and open settings"},"primary_button":{"label":"Make Firefox My Primary Browser","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Control branch (no `overrideContent` set) should show "make default" that immediately moves on to import (instead of waiting) as per bug 1691145.

Potential treatment A branch that shows pin on first page then make default on second page (also without waiting), so mainly useful for testing that the single pin action works:
```
{"template":"multistage","screens":[{"id":"AW_PIN_FIREFOX","order":0,"content":{"zap":true,"title":"Pin Firefox to your taskbar","subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":"Pin","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_SET_DEFAULT","order":1,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

This is now in nightly 87, and we should have all the pieces needed for an 87 release experiment for pinning from about:welcome.

QA steps (for new functionality in this bug and dependent windows API bug -- but not for the experiment, which has more branches/targeting):

1) install firefox on windows via installer, e.g., https://nightly.mozilla.org/ download link
2) open about:config
3) set `browser.aboutwelcome.overrideContent` pref to desired value (examples below)
4) open about:welcome
5) ensure firefox is pinned/unpinned from taskbar and/or default/not-default browser
6) go through about:welcome onboarding

Potential treatment D branch with combined action button that pins firefox to taskbar and opens windows' default settings dialog where about:welcome shows the next screen when Firefox becomes the default browser
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Pin Firefox to taskbar and open settings"},"primary_button":{"label":"Make Firefox My Primary Browser","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Control branch (no `overrideContent` set) should show "make default" that immediately moves on to import (instead of waiting) as per bug 1691145.

Potential treatment A branch that shows pin on first page then make default on second page (also without waiting), so mainly useful for testing that the single pin action works:
```
{"template":"multistage","screens":[{"id":"AW_PIN_FIREFOX","order":0,"content":{"zap":true,"title":"Pin Firefox to your taskbar","subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":"Pin","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_SET_DEFAULT","order":1,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment B branch that shows default browser like control then adds pin on second page:
```
{"template":"multistage","screens":[{"id":"AW_SET_DEFAULT","order":0,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_PIN_FIREFOX","order":1,"content":{"zap":true,"title":"Pin Firefox to your taskbar","primary_button":{"label":"Pin","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment C branch behaves like D above but slightly different text on the first screen:
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Make Firefox your main browser"},"primary_button":{"label":"Pin Firefox and Set to Default","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

This is now in nightly 87, and we should have all the pieces needed for an 87 release experiment for pinning from about:welcome.

QA steps (for new functionality in this bug and dependent windows API bug -- but not for the experiment, which has more branches/targeting):

1) install firefox on windows via installer, e.g., https://nightly.mozilla.org/ download link
2) open about:config
3) set `browser.aboutwelcome.overrideContent` pref to desired value (examples below)
4) open about:welcome
5) ensure firefox is pinned/unpinned from taskbar and/or default/not-default browser
6) go through about:welcome onboarding

Potential treatment D branch with combined action button that pins firefox to taskbar and opens windows' default settings dialog where about:welcome shows the next screen when Firefox becomes the default browser
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Pin Firefox to taskbar and open settings"},"primary_button":{"label":"Make Firefox My Primary Browser","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Control branch (no `overrideContent` set) should show "make default" that immediately moves on to import (instead of waiting) as per bug 1691145.

Potential treatment A branch that shows pin on first page then make default on second page (also without waiting), so mainly useful for testing that the single pin action works:
```
{"template":"multistage","screens":[{"id":"AW_PIN_FIREFOX","order":0,"content":{"zap":true,"title":"Pin Firefox to your taskbar","subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":"Pin to Taskbar","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"tiles":{"type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/pin-to-taskbar-v1.svg"}}}},{"id":"AW_SET_DEFAULT","order":1,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment B branch that shows default browser like control then adds pin on second page:
```
{"template":"multistage","screens":[{"id":"AW_SET_DEFAULT","order":0,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_PIN_FIREFOX","order":1,"content":{"zap":true,"title":"Pin Firefox to your taskbar","primary_button":{"label":"Pin to Taskbar","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"tiles":{"type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/pin-to-taskbar-v1.svg"}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment C branch behaves like D above but slightly different text on the first screen:
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Make Firefox your main browser"},"primary_button":{"label":"Pin Firefox and Set to Default","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

This is now in nightly 87, and we should have all the pieces needed for an 87 release experiment for pinning from about:welcome.

QA steps (for new functionality in this bug and dependent windows API bug -- but not for the experiment, which has more branches/targeting):

1) install firefox on windows via installer, e.g., https://nightly.mozilla.org/ download link
2) open about:config
3) set `browser.aboutwelcome.overrideContent` pref to desired value (examples below)
4) open about:welcome
5) ensure firefox is pinned/unpinned from taskbar and/or default/not-default browser
6) go through about:welcome onboarding

Potential treatment D branch with combined action button that pins firefox to taskbar and opens windows' default settings dialog where about:welcome shows the next screen when Firefox becomes the default browser
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Pin Firefox to taskbar and open settings"},"primary_button":{"label":"Make Firefox My Primary Browser","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Control branch (no `overrideContent` set) should show "make default" that immediately moves on to import (instead of waiting) as per bug 1691145.

Potential treatment A branch that shows pin on first page then make default on second page (also without waiting), so mainly useful for testing that the single pin action works:
```
{"template":"multistage","screens":[{"id":"AW_PIN_FIREFOX","order":0,"content":{"zap":true,"title":"Pin Firefox to your taskbar","subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":"Pin to Taskbar","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"tiles":{"type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/pin-to-taskbar-v1.svg"}}}},{"id":"AW_SET_DEFAULT","order":1,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment B branch that shows default browser like control then adds pin on second page:
```
{"template":"multistage","screens":[{"id":"AW_SET_DEFAULT","order":0,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-set-default-header"},"subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":{"string_id":"onboarding-multistage-set-default-primary-button-label"},"action":{"navigate":true,"type":"SET_DEFAULT_BROWSER"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}}}},{"id":"AW_PIN_FIREFOX","order":1,"content":{"zap":true,"title":"Pin Firefox to your taskbar","subtitle":{"string_id":"onboarding-multistage-set-default-subtitle"},"primary_button":{"label":"Pin to Taskbar","action":{"navigate":true,"type":"PIN_FIREFOX_TO_TASKBAR"}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"tiles":{"type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/pin-to-taskbar-v1.svg"}}}},{"id":"AW_IMPORT_SETTINGS","order":2,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":3,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```

Potential treatment C branch behaves like D above but slightly different text on the first screen:
```
{"template":"multistage","screens":[{"id":"AW_PIN_AND_DEFAULT","order":0,"content":{"title":"Start by making Firefox a click away","subtitle":"Fast, safe, and private browsing every time you use the web.","help_text":{"position":"default","text":"Make Firefox your main browser"},"primary_button":{"label":"Pin Firefox and Set to Default","action":{"navigate":true,"type":"PIN_AND_DEFAULT","waitForDefault":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-set-default-secondary-button-label"},"action":{"navigate":true}},"secondary_button_top":{"text":{"string_id":"onboarding-multistage-welcome-secondary-button-text"},"label":{"string_id":"onboarding-multistage-welcome-secondary-button-label"},"action":{"data":{"entrypoint":"activity-stream-firstrun"},"type":"SHOW_FIREFOX_ACCOUNTS","addFlowParams":true}},"waiting_for_default":{"subtitle":"Choose Firefox under Web browser when your settings open","help_text":null,"primary_button":null,"tiles":{"media_type":"tiles-delayed","type":"image","source":{"default":"chrome://activity-stream/content/data/content/assets/remote/windows-default-browser.gif"}}}}},{"id":"AW_IMPORT_SETTINGS","order":1,"content":{"zap":true,"help_text":{"text":{"string_id":"onboarding-import-sites-disclaimer"}},"title":{"string_id":"onboarding-multistage-import-header"},"subtitle":{"string_id":"onboarding-multistage-import-subtitle"},"tiles":{"type":"topsites","showTitles":true},"primary_button":{"label":{"string_id":"onboarding-multistage-import-primary-button-label"},"action":{"type":"SHOW_MIGRATION_WIZARD","navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-import-secondary-button-label"},"action":{"navigate":true}}}},{"id":"AW_CHOOSE_THEME","order":2,"content":{"zap":true,"title":{"string_id":"onboarding-multistage-theme-header"},"subtitle":{"string_id":"onboarding-multistage-theme-subtitle"},"tiles":{"type":"theme","action":{"theme":"<event>"},"data":[{"theme":"automatic","label":{"string_id":"onboarding-multistage-theme-label-automatic"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-automatic-2"},"description":{"string_id":"onboarding-multistage-theme-description-automatic-2"}},{"theme":"light","label":{"string_id":"onboarding-multistage-theme-label-light"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-light-2"},"description":{"string_id":"onboarding-multistage-theme-description-light"}},{"theme":"dark","label":{"string_id":"onboarding-multistage-theme-label-dark"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-dark-2"},"description":{"string_id":"onboarding-multistage-theme-description-dark"}},{"theme":"alpenglow","label":{"string_id":"onboarding-multistage-theme-label-alpenglow"},"tooltip":{"string_id":"onboarding-multistage-theme-tooltip-alpenglow-2"},"description":{"string_id":"onboarding-multistage-theme-description-alpenglow"}}]},"primary_button":{"label":{"string_id":"onboarding-multistage-theme-primary-button-label"},"action":{"navigate":true}},"secondary_button":{"label":{"string_id":"onboarding-multistage-theme-secondary-button-label"},"action":{"theme":"automatic","navigate":true}}}}]}
```