搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

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

  • 2 回覆
  • 27 有這個問題
  • 11 次檢視
  • 最近回覆由 TonyE

more options

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

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

所有回覆 (2)

more options

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I noticed your Flash installation is out of date which potentially exposes your system to exploits.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/

more options

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