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Thread: No full screen with YouTube on Firefox or Chromium, just Chrome

  1. #1
    Join Date
    Nov 2008
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    Kubuntu Development Release

    No full screen with YouTube on Firefox or Chromium, just Chrome

    I have no idea how this happened, but if I click the little icon to display a YouTube video full-screen in Firefox, I get the audio but a black screen. Tried Chrome and it worked fine. So I thought I'd use Chromium, but it has the same problem as Firefox. I've got a fully-upgraded 20.04 installation with Firefox 93.0. Both Chrome and Chromium carry the same version number, Version 94.0.4606.81 (Official Build), though Chromium is a snap.
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

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  2. #2
    Join Date
    Nov 2008
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    15,642
    Distro
    Kubuntu Development Release

    Re: No full screen with YouTube on Firefox or Chromium, just Chrome

    Using Kubuntu 21.10 in a KVM virtual machine doesn't present this problem.
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

    Blog · Linode System Administration Guides · Android Apps for Ubuntu Users

  3. #3
    Join Date
    Aug 2013
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    4,768

    Re: No full screen with YouTube on Firefox or Chromium, just Chrome

    It sounds like maybe a graphic driver issue (VM doesn't use host gpu so no problem?)

    Did you enable hardware acceleration? Any output from terminal if you start the browser with cli?

  4. #4
    Join Date
    Jun 2020
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    294

    Re: No full screen with YouTube on Firefox or Chromium, just Chrome

    xubuntu 20.04.3 LTS (focal fossa)

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