Using the QuickTime enabler

Pierre's Avatar


30 Oct, 2012 07:21 PM

I'm trying to read YouTube videos using the QuickTime enabler but remain unsuccessful.

Most of the time TenFour Fox returns the message "Failed to get video info" and the QT Player won't launch..

Sometimes info is found and the QT Player launchs but soon returns the message "The movie could not be opened - This is not a movie file".

Have you any idea ? TenFourFox would be an astonishing browser if it could plainly read videos and the Quicktime enabler is a smart solution but never saw it working.


Powerbook G4, 667 MHz, 512 MB
OS 10.4.11, TenFourFox 10.10, QuickTime 7.6.4, QT enabler 115

  1. Support Staff 1 Posted by Cameron Kaiser on 30 Oct, 2012 07:31 PM

    Cameron Kaiser's Avatar

    Please refer to the wiki page on the QTE ( ), in which we do mention that some YouTube videos, notably those with advertising requirements, will simply not play in the QTE. You could try one of the video downloader add-ons for those instead. There is no good way around this.

    That said, I personally encounter these videos relatively rarely. It may simply be a factor of the videos you are trying to watch. If no video works for you, ever, as your last statement implies, then I don't have an answer for you.

  2. 2 Posted by Pierre on 30 Oct, 2012 08:32 PM

    Pierre's Avatar

    Thank you for your reply.

    Updating Perian to 1.2.3 solved half the problem by allowing HTML5. The flv still cannot be displayed but I download them using Flash Video Downloader.


  3. 3 Posted by Pierre on 31 Oct, 2012 11:49 AM

    Pierre's Avatar

    I may have misunderstood, but is the QT Enabler supposed to work with Flash videos or does it require the HTML5 availability ?

  4. Support Staff 4 Posted by Cameron Kaiser on 31 Oct, 2012 03:04 PM

    Cameron Kaiser's Avatar

    The QTE has two modes. When accessing YouTube, it uses an undocumented Google API to find the internal H.264 equivalent for the video and play it (which is why advertising-only videos don't work, because they don't usually have H.264 versions). It does not actually play the .flv. It might be possible to do this in a later version, but the H.264 is usually better quality.

    Otherwise, it does require HTML5 video and audio to function, and selects the H.264 video or MP3 audio preferentially (otherwise whatever is available).

  5. 5 Posted by nick.s.barnett on 11 Feb, 2013 02:32 PM

    nick.s.barnett's Avatar

    10.5.8 on a 7450MacMini; Safari getting slower and slower; switched to 10.4Fox last month. Read about flash work-arounds; installed perian 1.2.3 and both Quicktime Enabler 116 and VideoAndAudioDownloader 0.1.6.

    To install Perian, you double click on the pane; QTE, you drag and drop onto a 10.4fox window; I'll come back to V&AD. Once I've clicked and dropped, there's no way of verifying that anything has happened, so when I get "file is not a movie file", I end up trying installing them again. QTE behaves exactly as it did before, whereas Perian does at least say "you've already got this one; do you want to replace it?"

    After that, I still get "file is not a movie file" though. I'm trying all sorts of content. You can't TELL which has adverts, though most does not, does it? Anyway, they ALL get the two quicktime messages: "Going to open" + the URL, and "The movie could not be opened The file is not a movie file".

    Shouting "O yes it is!" doesn't seem to help either.

    As for V&AD, it says right click in the toolbar and select "customize...". If I do that, I get a whole host of icons to choose from, including the icons for the OTHER two add-ons I've got, adblock and another, but not V&AD OR QTE . . .

    Any suggestions anyone? Is it something I need to do in QT, perhaps . . .

  6. Support Staff 6 Posted by Cameron Kaiser on 11 Feb, 2013 02:41 PM

    Cameron Kaiser's Avatar

    The "is not a movie file" is not due to ads; it's due to an H.264 profile QuickTime doesn't support. There is nothing the QTE can do about this. Some Tiger users have had luck installing the avc1Decoder components linked from the QuickTime enabler page, but I don't believe these have been tested on Leopard. Perian does not support these profiles and now that development has ceased, it is unlikely it ever will.

    In some cases downloading the video entirely first makes it playable. Any of the available Firefox video downloader add-ons will work for this purpose. However, there is no known way for the QTE to know in advance which ones are encoded with an unsupported H.264 profile.

  7. 7 Posted by nick.s.barnett on 11 Feb, 2013 04:33 PM

    nick.s.barnett's Avatar

    Thanks, Cameron!

    Good news: I changed one of the boxes on the add-ons page of V&AD (from ftv to MP4) and tried the "customize..." option again . . . and there was the icon!!! So I dragged it to the bar and it now allows me to download and convert youtube videos and play them in quicktime. Result, I suppose!

    I'll keep my eyes open for more on the h.264 front.

  8. 8 Posted by nick.s.barnett on 11 Feb, 2013 07:15 PM

    nick.s.barnett's Avatar

    Thanks again; I should have used this to reply. You can remove my
    reply if you think it's not helpful.

  9. Support Staff 9 Posted by Cameron Kaiser on 12 Feb, 2013 02:56 AM

    Cameron Kaiser's Avatar

    No worries.

  10. 10 Posted by nick.s.barnett on 12 Feb, 2013 05:02 AM

    nick.s.barnett's Avatar

    From a cursory look at the avc1Decoder stuff, I've decided not to try
    and install it, Cameron. It looks too technical.

    I have hardly done ANYTHING with the console. I used to be a
    programmer so I ought to get going on low level programming on my mac
    mini; how should I get started, would you advise? I need to get going
    on the linux innards of my OS (10.5.8).

    Any thought appreciated.

  11. 11 Posted by Tennisman on 24 Oct, 2013 09:34 PM

    Tennisman's Avatar

    Mac OS X v10.4.11
      Hardware Overview:
      Machine Name: Power Mac G4
      Machine Model: PowerMac3,3
      CPU Type: PowerPC G4 (2.9)
      Number Of CPUs: 2
      CPU Speed: 500 MHz
      L2 Cache (per CPU): 1 MB
      Memory: 1 GB
      Bus Speed: 100 MHz
      Boot ROM Version: 3.3.4f1
      Serial Number: XB0393PRJ3D
      Sales Order Number: M7893LL/A

    Switched from Safari to TenFourFox10 (7400)
    Trying to download QTE but get a message as follows:

    /Users/josephpanaccione/Desktop/V4L2r_D8.xpi.part could not be saved, because the source file could not be read.
    Try again later, or contact the server administrator.

    Can anyone help....thanks....tennisman

  12. Support Staff 12 Posted by Cameron Kaiser on 24 Oct, 2013 11:08 PM

    Cameron Kaiser's Avatar
    • Why are you using TenFourFox 10?
    • Have you tried repairing permissions on your desktop? This suggests the place where you are saving your download has the wrong permissions on it.
  13. 13 Posted by Joseph Panaccio... on 25 Oct, 2013 12:15 AM

    Joseph Panaccione's Avatar

    thanks for getting back to me, it is very kind of you.
    I am using this Mac machine from way back when I was employed in advertising/graphic arts and I love it!
    Having upgraded to OS X and using Safari, I have a lot of difficulity using the web. Safari is very unreliable for me and i can't seem to upgrade my system to solve this problem.
    That is why I went to seems to be more reliable than Safari but i can't access video?
    As you can see, i am NOT an advanced user, but I love my mac and would like to continue with this G4.....
    Any thoughts.....thanks again....Joe

  14. 14 Posted by daveclark966 on 24 Aug, 2019 08:37 AM

    daveclark966's Avatar

    Avdshare Video Converter just works as the powerful FLV to QuickTime converter which can easily convert any FLV file downloaded from any video website to QuickTime supported video format.

  15. Support Staff 15 Posted by Cameron Kaiser on 25 Aug, 2019 09:44 PM

    Cameron Kaiser's Avatar

    This is an old report and the QTE has been largely superseded by the MP4 Enabler, so I will close this ticket. I still support the QTE and offer it, but because many sites use TLS 1.2 and QuickTime 7 doesn't support this, the MP4 Enabler will work on many more sites even though it is slower.

  16. Cameron Kaiser closed this discussion on 25 Aug, 2019 09:44 PM.

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