Firefox got infected, illegitimate ads are showing!

My firefox has been showing ads everywhere I surf. If the web has ads, then they get replaced by the one from the spyware or whatever I got infected with. From time to time, I also get this error while accessing a website:
I’m using windows 8.1, I trie SUPERAntiSpyware professional, it didn’t help…

Answer #1
I guess it’s from a Infected Addon try disabling all addons and see
Answer #2
Tbh, SuperAntiSpyware isn’t all that good as well.
Answer #3
Java can cause a problem..
This is the message I got.
https://addons.mozilla.org/en-US/firefox/blocked/p428
Should be disabled or updated.
Run this check..
https://www.mozilla.org/en-US/plugincheck/
A scan with Malwarebytes would be a good idea too.
If you use the full version, it can auto block unsafe websites too..
http://www.google.com?t=15179960&highlight=
It only uses a serial,to crack, so it will update itself and the data bases, no problems
Answer #4
what do u recommend for windows 8? Unfortunately Spyware doctor doesnt work for win8 :/
Answer #5
what do u recommend for windows 8? Unfortunately Spyware doctor doesnt work for win8 :/
Malwarebytes and spybot is the way to go. Scan it in safe mode a few times.
Answer #6
Kaspersky Virus Removal Tool 2011 (Another name: AVPTool 2011) v11.0.1.1245
Kaspersky Virus Removal Tool 2011 serves for curing computers infected with viruses and other malware.
http://www.kaspersky.com/antivirus-removal-tool?form=1
Answer #7
Thanks a lot guys, will get to work right now.
Another thing, not to create another thread while we are here, could someone please help me find a crack/serial for my win 8.1
I can’t get it cracked, tried several times :/