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!

Avatar for Username

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

Learn More

Ce sujet de discussion a été archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

prefs.js -- malware inserted

  • 1 réponse
  • 1 a ce problème
  • 1 vue
  • Dernière réponse par James

shfergu
shfergu
more options

The Firefox prefs.js file was quarantined by avast yesterday. Message indicated malware had infected the file. Now when I click on the Firefox icon the MSN browser comes up. How can I get back to using Firefox safely? Can I uninstall Firefox, then re-install it to make the problem go away?

The Firefox prefs.js file was quarantined by avast yesterday. Message indicated malware had infected the file. Now when I click on the Firefox icon the MSN browser comes up. How can I get back to using Firefox safely? Can I uninstall Firefox, then re-install it to make the problem go away?

Toutes les réponses (1)

James
James
  • Top 25 Contributor
  • Moderator
more options

^Ignore the above reply by donthavecow

https://support.mozilla.org/en-US/questions/1371864

For some Firefox (and Thunderbird) users who use Avast or AVG briefly had these scanners quarantine the prefs.js file even though Avast/AVG said they fixed the False Positive issue the day before.

If you still have the prefs.js file you can out it back in your Profile.