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gettin this message before it will open: what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

  • 2 wotmołwje
  • 27 ma tutón problem
  • 1 napohlad
  • Poslednja wotmołwa wot TonyE

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when I click on mozilla to open my browser I get this message: what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined then I click OK or close and it starts

Wšě wotmołwy (2)

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Please do the following to update Firefox.

  1. Use Internet Explorer to Download Firefox 4.0.1

  2. When you see the prompt, choose "Save" and save it to your desktop.

  3. Then go to Add/Remove Programs, scroll down to "Mozilla Firefox" and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box).

  4. Then reboot and delete the folder called "Mozilla Firefox" at this location: C:\Program Files\Mozilla Firefox

  5. Finally run the installation file you downloaded to the desktop earlier.


Your bookmarks, customizations etc., are maintained in a different location and will become available to you again once you complete the installation.


I noticed your Flash installation is out of date which potentially exposes your system to exploits. See http://www.adobe.com/support/security/bulletins/apsb11-12.html

Update it via http://get.adobe.com/flashplayer/

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That indicates that you are using an add-on that is not compatible with Firefox 4. For details of how to troubleshoot this to find out what one is causing the problem see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes