Over the past week I've had trouble logging into yahoo mail, gmail, facebook and certain discussion forums. I can't even get to the yahoo mail or gmail log in page. I type my log in info on the facebook page and press enter and nothing happens. I've tried everything to solve this problem: I've deleted cookies.sqlite and cookies.sqlite-journal; deleted all my cookies; typed the appropriate website addresses in the exceptions window; removed my add-ons and themes; and even re-installed Firefox. Nothing has worked.