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No youtube videos play in Firefox, but I can play them using Safari and I've made no changes in my system.

Posted

On November 29, 2012, I could no longer play youtube videos in Firefox. They play fine in Safari. I have made no changes in my system, Flash is up to date (and has been; this was not changed), and RealPlayer is not active. What can I do to fix this? One minute it was working; the next, it wasn't.

On November 29, 2012, I could no longer play youtube videos in Firefox. They play fine in Safari. I have made no changes in my system, Flash is up to date (and has been; this was not changed), and RealPlayer is not active. What can I do to fix this? One minute it was working; the next, it wasn't.

Chosen solution

I only have one computer.

I reset Firefox instead of doing the troubleshooting, which seems to have fixed that problem, but now I no longer have Ad Block Plus. I can't wait to see what I have to do to get Firefox back to the way it was running before.

Thanks.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Java Plug-In 2 for NPAPI Browsers
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • Adobe® Acrobat® Plug-in for Web Browsers, Version 11.0.0
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Garmin Communicator Plug-in Version 4.0.3.0
  • A plugin to detect whether the Adobe Application Manager is installed on this machine.
  • Office Live Update v1.0
  • iPhoto6

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:16.0) Gecko/20100101 Firefox/16.0

More Information

Jan. 7 solutions 82 answers

Does the problem happen:

Does the problem happen: * with another computer? * in [[Troubleshoot Firefox issues using Safe Mode]]? * in a [https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles#w_creating-a-profile new profile]? * when security software is temporarily disabled?

Chosen Solution

I only have one computer.

I reset Firefox instead of doing the troubleshooting, which seems to have fixed that problem, but now I no longer have Ad Block Plus. I can't wait to see what I have to do to get Firefox back to the way it was running before.

Thanks.

I only have one computer. I reset Firefox instead of doing the troubleshooting, which seems to have fixed that problem, but now I no longer have Ad Block Plus. I can't wait to see what I have to do to get Firefox back to the way it was running before. Thanks.