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Firefox crashes

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  • 1 has this problem
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  • Last reply by cor-el

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Hi- When the Firefox icon is clicked to access the browser, I get an error message "Cannot find the Firefox runtime". I did recieve a message from Norton stating a malware threat had been found and acted upon (removed). I tried to Restore my computer to several previous set-point dates, but all attempts failed. What is my next option? Thanks! Jim

Hi- When the Firefox icon is clicked to access the browser, I get an error message "Cannot find the Firefox runtime". I did recieve a message from Norton stating a malware threat had been found and acted upon (removed). I tried to Restore my computer to several previous set-point dates, but all attempts failed. What is my next option? Thanks! Jim

All Replies (1)

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Do a clean reinstall and delete the Firefox program folder 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 folder 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 NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.