[Affected versions]: Nightly 79.0a1 (2020-06-22) (notice that beta and release won't have mute button available) [Affected platforms]: MacOs 10.14 [Preconditions] Have devtools.responsive.browserUI.enabled = true Steps : 1- Launch the Firefox browser 2- Reach youtube 3- Hit Cmd+option+M in order to start Responsive Design Mode, have both "reload when touch simulation is toggled" and "reload when user agent is changed" CHECKED, and Enable Touch Simulation. 4- resize viewport from bottom right corner 5- notice that it resizes properly and video keeps working 6- click on any video 7- now choose any device from the list, size adjusts accordingly. 8- notice that youtube switched to mobile version 9- resize again, device is not selected anymore now it's " responsive" by default Expected Results : videos should play normally Actual Results : nothing happens when clicking play, user needs to relaunch firefox to fix it as it won't switch back to desktop version.
Bug 1647394 Comment 0 Edit History
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[Affected versions]: Nightly 79.0a1 (2020-06-22) Beta 78.0b9 (64-bit) Release 77.0.1 [Affected platforms]: MacOs 10.14 [Preconditions] Have devtools.responsive.browserUI.enabled = true Steps : 1- Launch the Firefox browser 2- Reach youtube 3- Hit Cmd+option+M in order to start Responsive Design Mode, have both "reload when touch simulation is toggled" and "reload when user agent is changed" CHECKED, and Enable Touch Simulation. 4- resize viewport from bottom right corner 5- notice that it resizes properly and video keeps working 6- click on any video 7- now choose any device from the list, size adjusts accordingly. 8- notice that youtube switched to mobile version 9- resize again, device is not selected anymore now it's " responsive" by default Expected Results : videos should play normally Actual Results : nothing happens when clicking play, user needs to relaunch firefox to fix it as it won't switch back to desktop version.
[Affected versions]: Nightly 79.0a1 (2020-06-22) Beta 78.0b9 (64-bit) Release 77.0.1 [Affected platforms]: MacOs 10.14 [Preconditions] Have devtools.responsive.browserUI.enabled = true Steps : 1- Launch the Firefox browser 2- Reach youtube 3- Hit Cmd+option+M in order to start Responsive Design Mode, have both "reload when touch simulation is toggled" and "reload when user agent is changed" CHECKED, and Enable Touch Simulation. 4- resize viewport from bottom right corner 5- notice that it resizes properly and video keeps working 6- click on any video 7- now choose any device from the list, size adjusts accordingly. 8- notice that youtube switched to mobile version 9- resize again, device is not selected anymore now it's " responsive" by default Expected Results : videos should play normally Actual Results : nothing happens when clicking play, user needs to switch back to desktop version from the three dots menu.