Firrfox itself as well as extensions are at risk. Firefox itself is not perfect. But then again neither is IE, Safari, Chrome or Opera. If they were perfect then we wouldnt be on version 8 of IE, version 3.6 of Firefox, version 4 of Chrome, version 10 of Opera and version 3 of Safari.
So yes the browser itself can be at risk. At long as you run the latest version you should be alright. But remember nothing is 100% secure 100% of the time.
So yes the browser itself can be at risk. At long as you run the latest version you should be alright. But remember nothing is 100% secure 100% of the time.