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Bug 705012

Summary: >www-client/firefox-70.0.1: full screen mode don't work in youtube
Product: Gentoo Linux Reporter: lekto
Component: Current packagesAssignee: Mozilla Gentoo Team <mozilla>
Status: RESOLVED OBSOLETE    
Severity: normal    
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: Screenshot of problem.
emerge --info firefox
emerge --info firefox (laptop)

Description lekto 2020-01-08 22:33:37 UTC
Created attachment 602806 [details]
Screenshot of problem.

When trying enter fullscreen mode (F) in youtube, tabs and address bar are still visible. When I set firefox in fullscreen (F11) before this youtube works correctly. Firefox 70.0.1 is last version that works.
Also when I go fullscreen (F), go back and start moving and resising firefox I get info: "youtube.com  is now full screen" despite being in non-fullscreen mode.
Comment 1 Jory A. Pratt gentoo-dev 2020-01-09 13:55:42 UTC
I have tested 71, 72 and even 73 beta and all are working as expected. When you open a bug you need to provide as much information as possible if you want to see the problem addressed. You should have included `emerge --info firefox` so we have an ideal of how your system is built. Please feel free to reopen the bug with requested information.
Comment 2 lekto 2020-01-11 09:06:25 UTC
Created attachment 602948 [details]
emerge --info firefox
Comment 3 lekto 2020-01-11 09:08:28 UTC
I started firefox from console and noticed each time I go fullscreen (F) or back to normal on youtube  I get this message:
>JavaScript error: resource:///actors/DOMFullscreenParent.jsm, line 54: Error: TelemetryStopwatch: requesting elapsed time for nonexisting stopwatch. Histogram: "FULLSCREEN_CHANGE_MS", key: ""
Comment 4 lekto 2020-03-15 15:04:11 UTC
Same happened on my laptop yesterday after update Firefox from 70.0.1 to 74.0-r1.
I think i might be broken profile, cuz when I created new user and run Firefox it works correctly.
Comment 5 lekto 2020-03-15 15:04:48 UTC
Created attachment 619820 [details]
emerge --info firefox (laptop)
Comment 6 Thomas Deutschmann (RETIRED) gentoo-dev 2020-10-10 17:46:20 UTC
I am closing this bug as obsolete because the version against which the bug was reported is gone.

If you are still experiencing this issue please file a bug with upstream.

If this only happens with Gentoo package, i.e. -bin package works, please file a bug in Gentoo.