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My extensions stopped working about 2 weeks ago. I've tried 4.0, 3.6, 3.5, and 3.4, and they still don't work. They were all working fine until 2 weeks ago. I've tried everything I can think of. Please help. Thanks.

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My extensions stopped working about 2 weeks ago. I've tried 4.0, 3.6, 3.5, and 3.4, and they still don't work. They were all working fine until 2 weeks ago. I've tried everything I can think of. Please help. Thanks.

My main ones are SEO for Firefox and WiseStamp Email Signature.

My extensions stopped working about 2 weeks ago. I've tried 4.0, 3.6, 3.5, and 3.4, and they still don't work. They were all working fine until 2 weeks ago. I've tried everything I can think of. Please help. Thanks. My main ones are SEO for Firefox and WiseStamp Email Signature.

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.
  • Default Plug-in
  • Shockwave Flash 10.1 r85
  • iTunes Detector Plug-in
  • Yahoo Application State Plugin version 1.0.0.7
  • 4.0.50401.0
  • NPWLPG
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers
  • Adobe PDF Plug-In For Firefox and Netscape

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.10) Gecko/20100504 Firefox/3.5.10

More Information

cor-el
  • Top 10 Contributor
  • Moderator
17777 solutions 160821 answers

Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini, extensions.sqlite) and compatibility.ini in the Firefox profile folder to reset the extensions registry. New files will be created when required.

See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the "Find Updates" button (in Firefox 4: right-click the extension -> "Find Updates") to do a compatibility check.

Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini, extensions.sqlite) and compatibility.ini in the Firefox [[Profiles|profile folder]] to reset the extensions registry. New files will be created when required. See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the "Find Updates" button (in Firefox 4: right-click the extension -> "Find Updates") to do a compatibility check.