Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Lees voor meer informatie dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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

Deze conversatie is gearchiveerd. Stel een nieuwe vraag als u hulp nodig hebt.

FF4 compatible addons keep disabling as they're 'not compatible with FF4'.

  • 3 antwoorden
  • 9 hebben dit probleem
  • 89 weergaven
  • Laatste antwoord van whoisus

FF4 compatible addons (like adblock plus and downloadhelper) keep disabling and saying they're not compatible with FF4. I then have to reinstall the addon (often the very same version as before), it works again for a random number of days before deciding it's incompatible again. Is there any way to fix this?

FF4 compatible addons (like adblock plus and downloadhelper) keep disabling and saying they're not compatible with FF4. I then have to reinstall the addon (often the very same version as before), it works again for a random number of days before deciding it's incompatible again. Is there any way to fix this?

Alle antwoorden (3)

This can be caused if one of the files that stores details of installed extensions is corrupt.

  1. Open your profile folder, for details of how to find it see https://support.mozilla.com/kb/Profiles
  2. Close Firefox
  3. Delete the following files if they exist, extensions.cache, extensions.rdf, extensions.ini and extensions.sqlite
  4. Re-start Firefox, it will then rebuild the list on installed extensions

You may also need to reset the preferences.

That's fixed the problem. Thank you!