Firefox does not start "XPCOM" message pop up, my user and passwords! ??

My window 7 was not starting up properly so I did a system restore and now firefox does not start a message appears indicating "XPCOM" and I googled and all is said to reinstall Firefox. I don't usually to reinstall immediately because I need my passwords and username back. I can't find a solution on the forums, or if there is I have not found or I simply did not understand the solution itself. Please get back to me as soon as possible

Thank you!

Is a restoration of the system to a cancellation of the recent updates or something more radical?

You can do the following type of reinstall without touching your settings files. Important: uninstall NO Firefox first. That is not necessary.

Clean reinstall it

(1) download a fresh Installer for Firefox 36 of https://www.mozilla.org/firefox/all/ in an ideal location. (Scroll down your preferred language).

(2) the release of Firefox.

(3) to rename the program folder

(Windows 64-bit folder names)

C:\Program Files (x86)\Mozilla Firefox

TO

C:\Program Files (x86)\OldFirefox

(Windows 32-bit folder names)

C:\Program Files\Mozilla Firefox

TO

C:\Program Files\OldFirefox

(4) run the installer you downloaded in the #1. It should automatically connect to your existing settings.

When you start Firefox, you may need to use the Profile Manager to return to your regular profile. Ignore: copy/paste glitch.

Any improvement?

Note: Some plugins can only exist in this OldFirefox file. If it is missing something essential, present in these files:

  • \OldFirefox\Plugins
  • \OldFirefox\browser\plugins

Tags: Firefox

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