Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Avast detects URL:MAL when opening firefox 57.No issue with IE or Chrome, opera

  • 4 replies
  • 1 has this problem
  • 2 views
  • Last reply by iiguy

more options

upgraded to firefox 57 and get a redirect with it - sometimes blocked with Avast, sometimes not. " microsoft has noticed that you are infected.... "

other browsers are fine

uninstalling and will re-install clean to see if that helps

upgraded to firefox 57 and get a redirect with it - sometimes blocked with Avast, sometimes not. " microsoft has noticed that you are infected.... " other browsers are fine uninstalling and will re-install clean to see if that helps

All Replies (4)

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 if you don't already have one. Windows 8/10 have antivirus protection built-in.

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

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

more options

thanks - it is only with Firefox 57, I have Chrome, IE, Opera - all fine I have avast, spybot, malwarebytes,

Firefox 56 did not do it.... was hoping to start using Firefox more, again

more options

Only install Firefox from a trusted source: https://firefox.com

more options

Did revo uninstaller - deleted everything reinstalled - same fake virus see screen shot

from yahoo - to "microsoft 'fake' virus "

and yes, installed from https://www.mozilla.org/firefox/new/#download-fx