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Cannot Remove the DivX HiQ Extension


I have had the DivX HiQ & DivX Plus Web Player extensions for years. I don't remember how they even got there, but some time ago I noticed that they are no longer compatible but there is not way to remove them. In trying to remove another extension/add on I noticed these are still determinedly there. I have tried all the steps in the support articles. They either point to folders I don't have or files that aren't there. I even tried uninstalling firefox completely but despite thinking I had deleted all the so-called personal information, those extensions (ALL OF THEM) are still there. The extensions must be located somewhere that doesn't get deleted easily. How do I delete extensions?

Additional System Details

Installed Plug-ins

  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 11.6 r602
  • Version
  • Google Talk Plugin Video Accelerator version:
  • Displays Java applet content, or a placeholder if Java is not installed.
  • iPhoto6
  • Web based SlingPlayer for streaming from Slingbox
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • 5.1.10411.0
  • Facebook Video Calling by Skype
  • AmazonMP3DownloaderPlugin 1.0.15
  • BrowserPlus -- Improve your browser! -- http://browserplus.yahoo.com/


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:19.0) Gecko/20100101 Firefox/19.0

More Information

  • Top 25 Contributor
617 solutions 4263 answers

Helpful Reply

Hello willgrady, see if there is a DivX folder in /Library/Application Support/firefox, and delete it.


thank you

Question owner

Thank you for your response. There is no DivX folder.

  • Top 25 Contributor
  • Moderator
191 solutions 1967 answers

See this thread:

quote: (Xenon787)

after some investigating with the console, I discovered a folder stored in Macintosh HD/Library/Application Support/Mozilla/Extensions called "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}". It contains two subfolders which are the divx hiq and divx HTML5 plugins. delete them both and you should be set to go. the divx webplayer can be removed by searching for "divx" on your Macintosh HD and deleting the "DivXBrowserPlugin.plugin" that comes up.

Ref: http://kb.mozillazine.org/Uninstalling_add-ons#Global_extension

Question owner

Thank you for your reply. The Extensions Folder you mention is empty. There are no files or folders in there. Nor when I search does any plugin come up.

  • Top 25 Contributor
  • Moderator
191 solutions 1967 answers

See this earlier thread, in case it helps:

...and see http://www.divx.com/en/faq/view/supportFAQen170 which says,

Q: Can I uninstall DivX HiQ?

A: Yes, but DivX HiQ is part of the DivX Plus Web Player. They can be removed together through “Add/Remove Programs” on Windows, and using “Uninstall DivX for Mac” in the DivX applications folder on Mac OS X.

It might also help if you did the following, so that we can see exactly what Extensions are installed:

  • Click the Firefox Help menu and select Troubleshooting Information from the submenu.

Now, a new tab containing your troubleshooting information should open.

  • At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
  • Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.

If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.