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!

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’.

Learn More

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

I saw a pop-up that said the newest version of Firefox isn't compatible with my antivirus program, Avast. Why will Avast not work with Firefox 5.0? I downloaded 5.0 but have not installed it because of this.

more options

I downloaded 5.0 Firefox but haven't installed it. I saw a pop-up that said it isn't compatible with Avast. I do NOT want to stop using Avast. Why will Firefox 5.0 not work with Avast?

I downloaded 5.0 Firefox but haven't installed it. I saw a pop-up that said it isn't compatible with Avast. I do NOT want to stop using Avast. Why will Firefox 5.0 not work with Avast?

Alle antwoorden (1)

more options

If Firefox disabled some add-ons (especially extensions), it likely is because they include a list of compatible Firefox versions and haven't yet been updated for Firefox 5.

For more information on avast, see this thread: I have just updated Firefox on my desktop. In order to operate it had to disable avast, my open source excellent anti virus software - a surprise that Firefox is compatible! Is there an avast! update that is compatible? Or a fix from Firefox coming? | Firefox Support Forum | Firefox Help.