FR has recently rolled out updated rules (you need an account to see links) regarding the use of scripts, bots, etc.
Players found using extensions & scripts have been suspended so far. (ex. (you need an account to see links) and (you need an account to see links)) Luckily the suspensions only seem to be a few days long, but continued use of the extensions/scripts may lead to a permanent ban. Please take caution if you use any of these.