User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:2.0b1) Gecko/20100630 Firefox/4.0b1 Build Identifier: 9L30 umm i don't know really what else to say, i entered my login info and hit the return key and the page came up "internal server error" i didn't look at what else it said ( sorry am in a hurry) and so i refreshed the page and everything went back to normal. have not tried to replicate the error yet. will later. Reproducible: Didn't try
Are you sure you are talking about the Firefox Input application? It is very unlikely that you have a user account there.