My firefox doesnt work. I recently recieved a little pop up that said Do you accept incoming connections from firefox and I clicked on "block". Now everytime I go to firefox the google icon comes up but everytime I put a website it says "Unable to connect" and under it says" Firefox cant establish a connection with www,google.com '" I tried reinstalling it but it didnt work, what can I do?

It is possible that your firewall has blocked internet access to Firefox.

Which firewall are you using? http://support.mozilla.com/en-US/kb/Firewalls

Select the appropriate firewall, it will show you how to configure it to work with Firefox.

Please report back

What joker said ^^

You blocked your access to Firefox when you did that. Go under whatever firewall you're using and add Firefox to your Trusted Programs so that it'll allow Firefox.

Hope this helps.