I am getting unauthorised pop-ups using firefox

Question

i am getting unauthorised pop-ups on some web-sites. i am using Firefox v20

Answer 1

Do a malware check with a few malware scan programs.<br />
You need to use all programs because each detects different malware.<br />
Make sure that you update each program to get the latest version of the database before doing a scan.
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]
If you can't fix it with the above listed scanners then you need to ask advise on one of the forums that specialize in malware removal mentioned in the <i>Popups_not_blocked</i> article.