Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Learn More

Firefox won't open on Windows 10 with no error message and appears in the Task Manager

  • 2 Antworten
  • 1 hat dieses Problem
  • 1 Aufruf
  • Letzte Antwort von LifeShifterX

more options

Installed Firefox this morning and it was running, loaded my profile and had to restart within minutes afterwards, then stopped working and won't run, Only shows in task manager

Already Tried most troubleshooting steps listed below:

- Reinstalled - Cleared out App Data folders - Rebooted multiple times - Moved back to a restore point - Tried flushing dns and winsock reset


Any further suggestions?

Installed Firefox this morning and it was running, loaded my profile and had to restart within minutes afterwards, then stopped working and won't run, Only shows in task manager Already Tried most troubleshooting steps listed below: - Reinstalled - Cleared out App Data folders - Rebooted multiple times - Moved back to a restore point - Tried flushing dns and winsock reset Any further suggestions?

Geändert am von LifeShifterX

Alle Antworten (2)

more options

Note that doing a Windows System Restore can be dangerous.

Did you do a clean reinstall and delete the Firefox program folder? You can find the full version of the current Firefox release (66.0.3) in all languages and all operating systems here:


Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

You can also do a malware scan.

more options

cor-el said

Note that doing a Windows System Restore can be dangerous. Did you do a clean reinstall and delete the Firefox program folder? You can find the full version of the current Firefox release (66.0.3) in all languages and all operating systems here:

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

You can also do a malware scan.

I originally only installed the latest 66.0.3, it's a fresh laptop from work. Firefox originally worked aside of when I updated environment variables to use ADB (Android) command line.