Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Learn More

It seems our firefox browser has been hacked

  • 3 svar
  • 2 har detta problem
  • 73 visningar
  • Senaste svar av FredMcD

more options

Every time we open up firefox on my husband's computer or my own, the settings have all changed. Full screen instead of regular, new tabs, and now all of our bookmarks have been deleted and have been replaced with strange bookmarks. What can we do?

Alla svar (3)

more options

Just to be clear, both of our computers operate on the same firefox account with the same bookmarks, etc.

more options

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.


There is software like Advanced SystemCare with its Surfing Protection feature that can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

more options

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!