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firefox extensions is not working

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  • 7 have this problem
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  • Last reply by cor-el

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Script: file:///C:/Program%20Files/Mozilla%20Firefox/components/nsExtensionManager.js:623

Script: file:///C:/Program%20Files/Mozilla%20Firefox/components/nsExtensionManager.js:623

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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.


Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.

  1. Shockwave Flash 10.0 r45
  2. Next Generation Java Plug-in 1.6.0_15 for Mozilla browsers

Update the Java plugin to the latest version.

Update the Flash plugin to the latest version.