Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Zoeken in Support

Vermijd ondersteuningsscams. We zullen u nooit vragen een telefoonnummer te bellen, er een sms naar te sturen of persoonlijke gegevens te delen. Meld verdachte activiteit met de optie ‘Misbruik melden’.

Meer info

Firefox won't start anymore

  • 3 antwoorden
  • 0 hebben dit probleem
  • 41 weergaven
  • Laatste antwoord van Mad Maks

Rogier Scheltes
Rogier Scheltes

For some time now, I can't even start Firefox (even the latest version 146) on Windows 10. Firefox appears briefly in Task Manager, and then disappears. Refreshing and/or reinstalling doesn't work either. Only when I install Firefox in Windows 10's safe mode can I start it again. Then, in normal Windows mode, it works once, but then fails again. I don't get an error message. Holding down Shift doesn't work either. Chrome works, and so do all other programs. On another PC with Windows 11, with the exact same settings, there's no problem at all. Is anyone familiar with this problem?

Windows 10 Version 22H2 Build 19045.6809 Firefox Version 146.1

For some time now, I can't even start Firefox (even the latest version 146) on Windows 10. Firefox appears briefly in Task Manager, and then disappears. Refreshing and/or reinstalling doesn't work either. Only when I install Firefox in Windows 10's safe mode can I start it again. Then, in normal Windows mode, it works once, but then fails again. I don't get an error message. Holding down Shift doesn't work either. Chrome works, and so do all other programs. On another PC with Windows 11, with the exact same settings, there's no problem at all. Is anyone familiar with this problem? Windows 10 Version 22H2 Build 19045.6809 Firefox Version 146.1

Alle antwoorden (3)

Mozilla-assistent
Mozilla-assistent
  • Top 25 Contributor

Deze pagina kan u mogelijk op weg helpen: https://support.mozilla.org/nl/kb/firefox-wil-niet-starten-oplossingen-vinden.

Rogier Scheltes
Rogier Scheltes Vraageigenaar

No, I tried all these possible solutions before I posted my question. These did not help to solve my problem.

Mad Maks
Mad Maks
  • Top 25 Contributor
  • Locale Leader
  • Moderator

heeft u ook geprobeerd in de probleemoplossings modus te starten?

Een vraag stellen

U moet zich aanmelden bij uw account om op berichten te antwoorden. Stel een nieuwe vraag als u nog geen account hebt.