Won't open on Win 10
Firefox - was working fine, then computer spontaneously re-booted and now won't open.
Won't let me uninstall because says it is running.
Tried re-install anyway and it looked like it worked, but no luck - still won't open.
Chosen solution
Hi : Please Open Windows Task Manager and End all Firefox Processes then uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData 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 :
- https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
- https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
Reinstall with Current Release Firefox 59.0.2 with a Full Version Installer
Can also give this a try for the reboot :
- Repair System Registry and Files
Find the Dos Prompt Right or Powershell Click and Run as Administrator then : Copy/Paste to Dos Window : DISM /Online /Cleanup-Image /RestoreHealth then hit Enter. Reboot when completed. Note : DISM goes up to Microsoft for new ones.
Please let us know if this solved your issue or if need further assistance.
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Chosen Solution
Hi : Please Open Windows Task Manager and End all Firefox Processes then uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData 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 :
- https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
- https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
Reinstall with Current Release Firefox 59.0.2 with a Full Version Installer
Can also give this a try for the reboot :
- Repair System Registry and Files
Find the Dos Prompt Right or Powershell Click and Run as Administrator then : Copy/Paste to Dos Window : DISM /Online /Cleanup-Image /RestoreHealth then hit Enter. Reboot when completed. Note : DISM goes up to Microsoft for new ones.
Please let us know if this solved your issue or if need further assistance.
Thank you so much for this timely information. Firefox is back up and running again. God bless you all!
Renee