I have my browser set to open on comcast.net webpage and to never use tabs. I have been using firefox for years and am very familiar with it. Suddenly it has started opening on the last page it was on when shut down, and has started using tabs. When I delete Firefox from my computer, it still remembers all my settings. I had this problem once before years ago and ended up having to wipe my entire drive to fix it. I would like to avoid a drive wipe this time. I need to know how to get ALL of the browsers information deleted from the registry so I can get a truly fresh install. And yes, I have tried all the normal avenues and am pretty computer savvy. Please help before I go nuts. Thanks. Bob Smith