This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I still get a firefox security alert that my system affected by numerous virus attack even after I performed a full scan using microsoft security essential. what is the problem?

  • 2 cavab
  • 8 have this problem
  • 1 view
  • Last reply by cor-el

more options

I get a firefox security alert that my system affected by numerous virus attack. I performed a full scan using microsoft security essential immediately but same message still pop up after that even though no virus was found during the scan.

I get a firefox security alert that my system affected by numerous virus attack. I performed a full scan using microsoft security essential immediately but same message still pop up after that even though no virus was found during the scan.

All Replies (2)

more options

I don't think Firefox send out Security Alert. That could be a pop-up Scam.

On the safe side, you can use the following programs to scan your PC. I suggest you use them all since each one catches different kinds of viruses/spywares. After the scanning, you can delete them if you want to:

1. http://www.avg.com/us-en/homepage

2. http://www.malwarebytes.org/mbam.php

3. http://www.lavasoft.com/products/ad_aware_free.php

more options

You may be visiting a web site that has been infected or is hosting malware.
You should never respond unrequested pop-ups that try to persuade you to download and install software.
Doing that is the way to get malware because no decent company would use such methods to inform you about that.
You only saw an animation and not a real scan.