Do you use both FProt and Avira in realtime? If so how's FProt and is it designed to be run alongside another AV?
BTW your config is good and may I suggest you add WOT and Lastpass extensions to Firefox.
F-Prot is an old antivirus i have been using it from abaut 1991. There are better options like Avira, F-Secure, Kaspersky, GData.... but F-Prot works ok on my low risk environment. I like F-Prot.
Commtouh adquired F-Prot last year and will be new version this year.
why not use comodo IS or avast free? won't it be better than f-prot? i know you like it but just saying you could try and see!what are the specs of your pc?is it a single processor or dual core core 2 duo?