I can't launch Firefox.

When I try to launch Firefox, I simply will not open. I tried opening in Mode safe by holding Shift and clicking on Firefox - no luck.

Please check that.

You just updated recently? Sometimes during this process, the program files are damaged. Please try this:

Clean reinstall it

We use this name, but it isn't about deleting your settings, this is to ensure that the program, files are clean (not incompatible, corrupt or exotic code files). As described below, this process does not disrupt your existing settings. Don't uninstall NOT Firefox, that does not need.

(A) download a fresh Installer for Firefox 40.0 of https://www.mozilla.org/firefox/all/ in an ideal location. (Scroll down your preferred language).

(B) the release of Firefox (if any).

(C) to rename the program folder, either:

(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

(D) to run the installation program that you downloaded in the #1. It should automatically connect to your existing settings.

No improvement after this reinstall?

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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