Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Etsi tuesta

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.

Lue lisää

Ketju on arkistoitu. Esitä kysymys, jos tarvitset apua.

Mozilla cannot load xpcom

  • 1 vastaus
  • 1 henkilöllä on sama ongelma
  • 68 näyttöä
  • Viimeisin kirjoittaja philipp
  • Arkistoitu

monica211
monica211

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

Kaikki vastaukset (1)

philipp
philipp
  • Moderator

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