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Quick Time Hijacks Windows File Associations Only From Web Browsers

It took me 6 hours this morning to conclusively prove that Quick Time (latest version) isn’t playing well with web browsers on my Windows XP Pro (SP3) machine (nothing new here I guess).

I develop web sites which get their content from local hard or DVD/CD drives (as opposed to from the internet). All my Windows file associations for audio/video file types point to Windows Media Player (WMP) so that when one of my web pages looks for a file type of say .mpg or .mp3, WMP is opened and the file is played. Pretty straight forward and has worked fine for years.

Some time in the last few months (and I now strongly suspect after a Quick Time update) my browsers (all of them….. IE, Firefox, and Chrome) started opening Quick Time instead of WMP when my HTML goes to open any media file type. I’ve checked my Windows file associations which all still point to WMP. I also note that when I open one of my media files from a file utility such as Windows Explorer or my aftermarket file utility (as opposed to from a browser), they correctly open in WMP. So…….. its only from browsers that QT hijacks my intended media player.

In Internet Explorer I’ve gone to “Manage Add-Ons” and “disabled” Quick Time. This in fact causes QT not to be opened but instead a blank web page appears containing only the browser’s little error box with a big red X in it which usually means a picture file is missing…… WMP is not launched even though it is enabled in Manage Add-Ons and QT is disabled.

The only way I’ve found to fix this problem is to uninstall Quick Time in which case everything works fine. (My objection to Quick Time as my default media player is that even the latest version doesn’t reliably play video created for Windows file types.)

Can anyone tell me how to make Quick Time co-exist on my computer without hijacking my attempts to get at WMP from browsers?

The only reason Quick Time has existed on my computer in recent years is so I have access to iTunes. I’ve uninstalled both Quick Time and iTunes till I find a solution to this problem which means iTunes isn’t selling me anything in the mean time.

Dell, Windows XP Pro, SP3

Posted on Feb 13, 2010 1:33 PM

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5 replies

Feb 13, 2010 6:09 PM in response to skiguycolorado

Some time in the last few months (and I now strongly suspect after a Quick Time update) my browsers (all of them….. IE, Firefox, and Chrome) started opening Quick Time instead of WMP when my HTML goes to open any media file type.


If this is happening when you open links in web pages, we need to adjust MIME type settings rather than File type settings.

In QuickTime, go "Edit > Preferences > QuickTime preferences". Go into the Browser tab, and click the MIME settings button.

Expand the entries in the list, and uncheck all types of files that you don't want the QuickTime plugin to open. Click OK.

Is WMP handling the desired files now?

Feb 15, 2010 11:14 AM in response to skiguycolorado

they "must" want Quick Time to also take over all their audio/video functions.


To avoid this on future QuickTime updates, try downloading a copy of the installer from the Website rather than using Apple Software update:

http://www.apple.com/quicktime/download/

At the end of the install process using QuickTimeInstaller.exe, the screen should include a button saying something like "Configure file/MIME types". Click that button, go to the MIME types tabs, and make sure the configuration is as you desire.

After doing that, and completing the installation, launch QuickTime Player. If you get a message about file types defaults, say you don't want to change the file type associations to the QuickTime defaults. Also, try clicking the "don't show me this message again" after having done so. That should keep your sundry associations secure.

Apr 13, 2010 3:32 PM in response to skiguycolorado

I'm having the same issue that Quicktime hijacks file associations.

I recently reinstalled my copy of Windows 7 64-bit and have installed basically hardly anything on it. I have however installed iTunes (+Quicktime) for my iPhone and Winamp (and not even loaded Windows Media Player).

Basically when I uninstall Quicktime, I can just type an url in the IE8 address bar with the .mp3 extension and download and save the file there and then. Only after installing Quicktime the browser will open the .mp3 in the window and play it embedded with the Quicktime player.

This is something I do NOT want, and I am really ****** off that Quicktime just takes over this feature without asking me first!!
That being besides the point really because I also cannot find the option in Quicktime's settings to undo this!!

When I go to Quicktime's settings -> Browser -> MIME types
It just shows that .mp3 is linked to Winamp (like I want it to be), but it still opens as a Quicktime Control Object.

Reinstalling IE8, resetting its settings, disabling the iTunes & Quicktime addons, even removing the Quicktime Control Object class from the registry... Nothing worked!

http://www.archive.org/details/testmp3testfile
Here you can find an mp3 file to use for testing.

Apr 30, 2010 8:54 PM in response to skiguycolorado

Most of my IT colleagues concur with me that Quicktime is the most annoying and frustrating piece of software we are forced to regularly interact with, and its hijacking of file associations (a problem it has had and has been complained about for YEARS) is one of the many reasons. I really hope Apple can get around to addressing this problem sometime this decade. I will cut them some slack if they want to address the constant crashes first, though. Quicktime is just awful.

Quick Time Hijacks Windows File Associations Only From Web Browsers

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