QT enabler doesn't work in TFF FPR 14

Jörg's Avatar


16 Jun, 2019 07:20 AM

This comment was split from the discussion: TenFourBox and YouTube

Hi Chris,

The banners are gone thanks to 52ESR but QT enabler won't play YT videos any more since Release 14. YT totally useless now.

Isn't there a video downloader available that still works? I still have Easiest YouTube Video Downloader in my Extensions but that one stopped working a long time ago.

Thanks, Jörg.

  1. Support Staff 1 Posted by Chris (chtrusch... on 16 Jun, 2019 07:21 AM

    Chris (chtrusch)'s Avatar

    The QT enabler isn't my area of expertise, but I can say that there are lots of YT downloaders that work great, but they're all web-based, such as


    Download add-ons must be updated constantly to keep working on the ever-changing YouTube website. Most or all of the classic (non WebExtensions based) add-ons will have stopped working on YT by now.

    Also I can say that YouTube is usable in the browser itself, but you need a fast Mac.

  2. Support Staff 2 Posted by Chris (chtrusch... on 16 Jun, 2019 07:32 AM

    Chris (chtrusch)'s Avatar

    PS Jörg, if you post answers in existing threads please stay on-topic, or create a new thread for your specific problem.

  3. Support Staff 3 Posted by Chris (chtrusch... on 16 Jun, 2019 07:50 AM

    Chris (chtrusch)'s Avatar

    Tested QT enabler. Can confirm the problem. YT must have changed something in their URL structure in a way that QuickTime can't use it anymore. Error "The file is not a movie file."

    Doesn't work in TFF 13, either, so the problem has nothing to do with the FPR 14 update.

  4. 4 Posted by yawgie on 16 Jun, 2019 04:38 PM

    yawgie's Avatar

    So can I go back to the earlier Ten4Fox version until you fixed this? YT is
    banning a lot of stuff I like but still use it a lot. Thanks.

    Op zo 16 jun. 2019 09:50 schreef Chris (chtrusch) <
    [email blocked]>:

  5. Support Staff 5 Posted by Chris (chtrusch... on 16 Jun, 2019 05:08 PM

    Chris (chtrusch)'s Avatar

    Does it work for you in earlier TFF versions?

  6. 6 Posted by yawgie on 16 Jun, 2019 05:41 PM

    yawgie's Avatar

    Yep, it worked well until the last update.

    Op zo 16 jun. 2019 om 19:08 schreef Chris (chtrusch) <
    [email blocked]>:

  7. 7 Posted by yawgie on 16 Jun, 2019 06:12 PM

    yawgie's Avatar

    Actually I used the MP4 extension and chose the miniplayer. Enough for me.
    Worked like a charm. But after the latest upgrade nothing works anymore on

    Op zo 16 jun. 2019 om 19:08 schreef Chris (chtrusch) <
    [email blocked]>:

  8. Support Staff 8 Posted by Chris (chtrusch... on 16 Jun, 2019 07:04 PM

    Chris (chtrusch)'s Avatar

    The question was not "did it work" but "does it work". As in "today", if you re-install TFF 13. Because I don't believe our TFF 14 update is the cause of the problem.

  9. Support Staff 9 Posted by Cameron Kaiser on 16 Jun, 2019 09:04 PM

    Cameron Kaiser's Avatar

    I agree with Chris. YouTube support in QTE has always been messy and prone to glitches, and I suspect that something has changed in the API on the other end that it uses. The other possibility is they may be enforcing TLS 1.2, which TenFourFox supports but QuickTime doesn't, and QTE uses QT natively for network transport.

  10. 10 Posted by yawgie on 16 Jun, 2019 10:41 PM

    yawgie's Avatar

    Just went back to FPR13 and still no cigar. WTF.

    Op zo 16 jun. 2019 om 21:04 schreef Chris (chtrusch) <
    [email blocked]>:

  11. 11 Posted by yawgie on 17 Jun, 2019 12:28 PM

    yawgie's Avatar

    Thanks a lot Chris. DownVid works like a charm.

    Op zo 16 jun. 2019 om 09:21 schreef Chris (chtrusch) <
    [email blocked]>:

  12. 12 Posted by yawgie on 09 Jul, 2019 10:50 PM

    yawgie's Avatar

    Chris pointed me to a downloading app, downvid that worked OK but suddenly
    it has stopped working and instead of downloading a selected mp4 it gives
    me a page of random other videos. I installed the new release of TFF and
    now there is no more navigation bar on the YT page. Can't watch any YT
    videos anymore. Not an improvement. Thanks anyway.

    Op zo 16 jun. 2019 om 23:04 schreef Cameron Kaiser <
    [email blocked]>:

  13. Support Staff 13 Posted by Chris (chtrusch... on 10 Jul, 2019 04:32 AM

    Chris (chtrusch)'s Avatar

    There are alternatives like

    Youtube keeps changing its backend and the download sites must keep up, some are better at it than others.

    Youtube also has changed their frontend layout a bit; I now get two navigation bars (one on top, one to the left) but this may vary with screen size, maybe also by country. It certainly has nothing to do with the TFF update.

  14. 14 Posted by yawgie on 10 Jul, 2019 09:55 AM

    yawgie's Avatar

    Thanks Chris, found one already that works. Still miss the right nav bar in
    the YT subscriptions so went back to the last release, # 14.

    Op wo 10 jul. 2019 06:33 schreef Chris (chtrusch) <
    [email blocked]>:

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