1645053 - [Experiment] The "Dismiss" button from the "Set Firefox to Default" snippet is not visible if the Windows "High Contrast" mode is enabled

Status: RESOLVED WONTFIX

(Firefox :: Messaging System, defect, P2)

Description

[Marius Coman [:mcoman], Ecosystem QA]

Attachment: rec of the issue.gif

[Affected versions]:

• Firefox Release 72.0 - Build ID: 20200103162918
• Firefox Release 73.0.1 - Build ID: 20200217142647
• Firefox Release 74.0 - Build ID: 20200309095159
• Firefox Release 75.0 - Build ID: 20200403170909
• Firefox Release 76.0 - Build ID: 20200429185419
• Firefox Release 77.0.1 - Build ID: 20200602222727

[Affected Platforms]:

• Windows 10 x64

[Prerequisites]:

• Have a Firefox en-US locale build installed.
• Have a Firefox profile older than 17 weeks. In order to do that you can change the creation date from the "times.json" file that can be found in the current profile folder.
• Have the following pref in the "about:config" page:
  • "browser.newtabpage.activity-stream.asrouter.providers.snippets" pref value set to "{"id":"snippets","enabled":true,"type":"remote","url":"https://snippets.cdn.mozilla.net/%STARTPAGE_VERSION%/%NAME%/%VERSION%/%APPBUILDID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/experiment-202007-hvmt/%DISTRIBUTION_VERSION%/","updateCycleInMs":14400000}".
  • "browser.search.region" pref value must not be set to "US".
• Have the "High Contrast" mode active.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisites.
2. Open a new tab and hover the "Set Firefox as Default" snippet.
3. Observe the snippet's elements.

[Expected result]:

• All the snippet elements are successfully displayed and visible.

[Actual result]:

• The snippet's "Dismiss" button is present but not visible.

[Notes]:

• Attached a screen recording of the issue.