Since the most recent update (yesterday), periodically I am redirected to random sites when I click on a link from a Google search.

Question

I opened Firefox yesterday morning, and it asked me to wait while it updated. When it was done, I was asked whether I wanted to enable "XUL Cache 1.0". It looked official enough, so I enabled it. Almost every time I clicked on a web link from a Google search, I was re-directed to websites like the Yellow Pages or a "Local Look-up" site. In desperation, I disabled the XUL cache extension, restarted Firefox, and things seemed fine. This morning and a couple times this afternoon however, I've been redirected to the wrong sites again. It isn't as prevalent as it was yesterday, but it is still there.

Answer 1

Do a malware check with some malware scanning programs on the Windows computer.<br />
You need to scan with all programs because each program detects different malware.<br />
Make sure that you update each program to get the latest version of their databases before doing a scan.<br /><br />
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
*http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
*http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked