what is the optimum or best cache size limit for firefox portable whose folder is located not on a flashdisk but on hdd? is it best to leave it as is which is automatic cache management? or is it better to limit the cache size to something like 50 MB, 100 MB, 250 MB, etc? got big enough hdd and free space & broadband connection. please don't bother to say "what suits your needs is the best!" or something like that. thanks.