system restore getting anoying to get internet back

Ok i have to keep doing a system restore to get my Internet back up and running. I have XP and i run firefox after a certain amount of time my Internet just stops working and i don't know what is going on.

 

sounds like a malware issue. go to malware removal, whether you think you have malware or not, and go through read and run me first. follow all of the steps and come back with some more info.

 

were should i go to do this malware removal