I have Firefox 18.104.22.168 and have 51 Extensions installed. Tons of bookmarks, and special settings and tweaks and so forth. I used to be the one updating to the latest available beta of any program, but have not done this with Firefox in awhile as you can see I have it how I want it. Though I have got the erge to update now. I want to know, will any of my extension work (or all of them?), if I install the beta will it install over my current version, I read that it will install in a separate folder that you can delete later to remove it, but I was unsure of that. And if it does install over, if I have to and want to remove it will it remove all my extensions and settings etc, again where I read that it keeps everything, I do not trust the source of it. I have not searched Mozilla's site, maybe I should of, thought I'd get your ideas on it. Thanks.