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Firefox crashes and cant open

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  • Last reply by Shadow110

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Downloaded firefox 5 times after install I receive this message {FAILED TO READ CONFIGURATION FILE, CONTACT YOUR SYSTEM ADMINISTRATOR.] Can any one help me with this problem PLEASE, did a complete uninstall and reinstall but keep getting the same message and can not open Firefox. Thank You

Downloaded firefox 5 times after install I receive this message {FAILED TO READ CONFIGURATION FILE, CONTACT YOUR SYSTEM ADMINISTRATOR.] Can any one help me with this problem PLEASE, did a complete uninstall and reinstall but keep getting the same message and can not open Firefox. Thank You

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uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do :

Reinstall with Current Release Firefox 57.0.2 with a Full Version Installer

Create a new profile as a test to check if your current profile is causing the problem.

See Creating a profile : Please read 1st one here as you make the new profile while Firefox is not running. It is possible your Profile is corrupted and reason why it will not start.

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem. Never work with original files.

Please let us know if this solved your issue or if need further assistance.