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

Can't open FF4, and I get a Vista Home Security 2011 error message

  • 1 reply
  • 17 have this problem
  • 28 views
  • Last reply by TonyE

more options

I downloaded FF v4 on my Dell laptop running Vista. FF worked fine, so I downloaded Aniweather, Forecastfox weather, and something else that I can't find now all from the Mozilla website.

I tried to adjust the weather to my locale from the default New York City. Then everything went to crap. I got a pop-up from Vista Home Security 2011 that ran a scan, then told me I had 31 infections of Malware and trojans. Then it told me I had to subscribe to it's services to remove the infections.

Then I tried to open FF4 and nothing happened. So I tried to open Internet Explorer and it won't open either. The Vista Home Security keeps popping up and acts like a trojan, so I haven't done anything with it. How can I find and remove everything I downloaded from Mozilla?

I downloaded FF v4 on my Dell laptop running Vista. FF worked fine, so I downloaded Aniweather, Forecastfox weather, and something else that I can't find now all from the Mozilla website. I tried to adjust the weather to my locale from the default New York City. Then everything went to crap. I got a pop-up from Vista Home Security 2011 that ran a scan, then told me I had 31 infections of Malware and trojans. Then it told me I had to subscribe to it's services to remove the infections. Then I tried to open FF4 and nothing happened. So I tried to open Internet Explorer and it won't open either. The Vista Home Security keeps popping up and acts like a trojan, so I haven't done anything with it. How can I find and remove everything I downloaded from Mozilla?

All Replies (1)

more options

Vista Home Security 2011 is a rogue application. Try running several malware scanners to ensure your computer is not infected. It is best to run several as each will pick up things that the others miss. Some scanners you can try are: