Can someone tell me if there are any free antivirus trial software I can download until I can afford

I have norton antivirus protection and It has expired. Unfortunately, I can't afford to purchase the updated protection right now. I use firefox as my browser. Thanks so very much for your time...I'm freaking out over here 'cause I just had a virus last year....please help!!

Can someone tell me if there are any free antivirus trial software I can download until I can afford to buiy?product key

I see the AVG fanboys and cheerleaders are out in full force again here on Yahoo Answers!

AVG by Grisoft is definitely NOT "The Best". Unfortunately one of the things it is not the best at, is doing what is is supposed to do, detecting viruses!

In short, AVG is crap!

In test,

http://www.virus.gr/english/fullxml/defa...

after test,

http://www.av-comparatives.org/

after test,

http://antivirus.about.com/od/antiviruss...

after test ,

http://www.wilderssecurity.com/showpost....

after test,

http://www.pcworld.com/article/124475-1/... ,

etc. etc. etc, ad nauseam. AVG has proven itself to be a mediocre performer at best. Absolutely crappy at worst. Missing almost 20%, when trying to detect known malware, in some tests. Not to mention almost non-existent heuristic detection and infrequent "once-a day" updates.

AVG = Average, at best!