Computer worm/virus/trojan

[WMerkert]

Since a week i have the problem that firefox often opens new windows with commercials,although my popup blocker is activated. I think it's a kind of virus/adware/trojan or something. Does anybody know the name of this malware ? I need the name to search for a removal tool.
Thanks

[jim777]

Have you tried uninstalling, then reinstalling Firefox?

[WMerkert]

I did a completely new setup, so the problem is solved.
Thx