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I use Ubuntu 18.04 and Firefox 60.0 (linux beginner!)

I just installed the flash player, but the only videos that are displayed in my browser are the ones on youtube. facebook and any other streaming-services can not play videos.

do i need to install/enable html5 somehow?

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If those streaming services use DRM, you must enable DRM in Firefox's settings: Preferences -> General -> Play DRM-controlled content You might also have to install package libavcodec-extra to get the codecs:

sudo apt install libavcodec-extra

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  • 2
    works on Ubuntu 18.04.2 with Firefox 62, thanks. – saif Oct 2 '18 at 18:36
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    Woks on Ubuntu 16.04LTS. Thanks – AAI Mar 24 '19 at 23:22
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    Works on 19.04, but how the hell is my grandma supposed to figure this out? We gotta do better than this... – Jack M Jun 20 '19 at 7:24
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    didnt fix this in the latest version of ubuntu – Vikranth Aug 26 '19 at 17:31
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    Used this command sudo apt install libavcodec-extra58 libavcodec-extra in ubuntu-20.04. Otherwise it threw unmet dependencies error. – theB Jul 23 at 10:28
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On Lubuntu 20.04 playing videos wasn't possible until I disabled adblock on that particular website

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