This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Jei jums reikia pagalbos, užduokite naują klausimą.

Mozilla cannot load xpcom

  • 1 reply
  • 1 has this problem
  • 3 views
  • Paskiausią atsakymą parašė philipp

monica211
monica211
more options

I am know getting this message, after some Windows updates. I am unable to open Mozilla. I have read a lot but am not tech savvy.. Where is the File to uninstall? If I go to control panel, installed programs, can I uninstall it from there. I have Vista. How do I save my bookmarks, downloads, etc that I have on Mozilla. Thank you

I am know getting this message, after some Windows updates. I am unable to open Mozilla. I have read a lot but am not tech savvy.. Where is the File to uninstall? If I go to control panel, installed programs, can I uninstall it from there. I have Vista. How do I save my bookmarks, downloads, etc that I have on Mozilla. Thank you

All Replies (1)

philipp
philipp
  • Moderator
more options

hello monica211, this is a problem that sometimes happens after a windows system restore. please first try a clean reinstall of firefox:

  • download the full firefox setup file from https://www.mozilla.org/firefox/all/
  • uninstall firefox from the sytem control panel
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files (x86)\Mozilla Firefox\
  • reinstall firefox

in case this did not help, the xpcom error message at startup might also be caused by thrid-party security tools: http://kb.mozillazine.org/Browser_will_not_start_up#.22Couldn.27t_load_XPCOM.22_error