Green vertial stripe on youtube
I get a green vertical stripe when playing youtube videos
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Try to disable the hardware acceleration in the Flash Player.
See Flash videos won't play full screen
http://www.youtube.com/swf_test.html (right-click the player: Settings)
Flash "Display settings" window:
http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html
Seeing a green stripe on a media player usually means that the player overlay isn't fully covering the (green) space that Firefox reserve.
You can try to set this pref to false on the about:config page.
- media.wmf.dxva.d3d11.enable = false
You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.
You can try to disable hardware acceleration in Firefox.
- Options/Preferences -> General: Performance
remove checkmark: [ ] "Use recommended performance settings"
remove checkmark: [ ] "Use hardware acceleration when available" - https://support.mozilla.org/en-US/kb/performance-settings
Close and restart Firefox after modifying the setting for changes to take effect.
You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.