this started March 30/11. Firefox repeatedly stops responding. Firefox causes Facebook to halt for seconds to minutes. when typing on Facebook, it can take 2 minutes to type one word. Extremely annoying. other websites are fine. Other browsers are fine, no problems like this with Facebook on Internet Explorer or on Chrome. No problems playing the Zynga games, they work fine. Just Facebook. I am using a Laptop with Windows 7. lots of RAM lots of hard disk space.