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Thread: Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

  1. #1
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    Hello ,

    i use to play back mp4 on youtube via greasemonkey + viewtube extension on firefox browser.


    since ubuntu 19.04 it seems the playback is no longer functioning on youtube, maybe due to missing plugins?
    on ubuntu 18.04 it is still functioning; don't know what changed in 18.10 and 19.04 (or 19.10).

    the only plugin i find which is active on firefox is openh264 videocodec;

    the error is the following

    "video-format or mime-type is not supported"


    any idea on why this is happening? any solution? can't find any plugin to install anymore like gecko-mediaplayer or totem-mozilla, they seem deprecated, sadly.

    i should add that the playback does not function on firefox 52 esr , but functions with firefox 60 esr.
    Attached Images Attached Images
    Last edited by howefield; 1 Week Ago at 10:36 PM. Reason: posts merged.

  2. #2
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    Just so you know, 19.04 is EOL and no longer supported.
    But for supported Versions 18.04 && 19.10, your install should go as follows:
    Code:
    sudo apt install libdvdnav4 libdvdread4 gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly libdvd-pkg
    sudo apt install ubuntu-restricted-extras
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
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  3. #3
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    Quote Originally Posted by 1fallen View Post
    Just so you know, 19.04 is EOL and no longer supported.
    But for supported Versions 18.04 && 19.10, your install should go as follows:
    Code:
    sudo apt install libdvdnav4 libdvdread4 gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly libdvd-pkg
    sudo apt install ubuntu-restricted-extras
    Thanks , i didn't expect such a fast response

    The packages of the 1st line were already installed.
    Installed the "ubuntu-restricted-extras" , but videos (on firefox 52 esr) still not playing as expected, sadly.

    maybe ubuntu changed something in the background that inhibits earlier firefox from playback of codecs properly? or maybe i am still missing some vital codec on 19.04? thanks
    Last edited by howefield; 1 Week Ago at 10:35 PM. Reason: posts merged.

  4. #4
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    Can you post a link that won't play on your end.
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
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  5. #5
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    https://www.youtube.com/watch?v=CqsXPv5TPYY

    playback is fine withouth greasemonkey + viewtube, but i rely on it to blend out undesired publicity , and for ease of use.

    i noticed that .mp4 playback is not functioning, whereas .webm playback is normal.

    please see screenshot on the left (mp4 not playing back)
    screenshot on the right (webm playing back normally)
    Attached Images Attached Images
    Last edited by howefield; 1 Week Ago at 10:42 PM. Reason: posts merged.

  6. #6
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    How did you install Firefox ESR? Access to snaps and flatpaks or other sources may be blocked too in this environment.
    Plays fine here:
    Code:
    Video ID / sCPN
    CqsXPv5TPYY / QW4M 9JX3 W4QK
    Viewport / Frames
    779x438 / -
    Current / Optimal Res
    854x480@30 / 854x480@30
    Volume / Normalized
    100% / 100% (content loudness -5.7dB)
    Codecs
    vp09.00.51.08.01.01.01.01 (244) / opus (251)
    Color
    bt709 / bt709
    Connection Speed
    2802 Kbps
    Network Activity
    0 KB
    Buffer Health
    63.53 s
    Mystery Text
    s:c44 t:0.00 b:0.000-63.529 P
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
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  7. #7
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    hei, i just downloaded the archive from mozilla ftp and extracted it locally and started from there (+disabled the automatic-update.process)

  8. #8
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    Xubuntu 19.10 Eoan Ermine

    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    Quote Originally Posted by 1fallen View Post
    Just so you know, 19.04 is EOL and no longer supported.
    It's supported until January. All of the short term support releases have nine months of support.
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts.
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  9. #9
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    Re: (19.04) mp4 not playing on youtube / greasemonkey + extensions

    What do you mean by "undesired publicity?" Advertising? Give Brave Browser a try. It filters out a lot of ads and scripts by default.

    YouTube ads rarely run more than fifteen seconds.
    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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