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error code XPCOM

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  • Last reply by cor-el

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I'm getting an error code XPCOM when I try to open Firefox. It fails to open but all indications say that I have internet connection. . Opening Explorer and I get unable to display and says to check my proxy settings. This just started. No proxy settings were changed . Help!!

I'm getting an error code XPCOM when I try to open Firefox. It fails to open but all indications say that I have internet connection. . Opening Explorer and I get unable to display and says to check my proxy settings. This just started. No proxy settings were changed . Help!!

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Do a clean reinstall and delete the Firefox program before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.