I like Firefox because of the customizations, but over the last couple of days, I have been having to re-customize my browser every time I restart it and it's getting very frustrating. I use personas and at re-start, a previous theme, instead of my current theme is up and when I go into the add-ons>appearance, my current theme is still enabled, but not showing on the browser. I made a custom toolbar for the Forcastfox add-on and some add-on buttons that I like to use and upon start up, the entire tool bar is gone. I never had this problem with the older versions of Firefox... or even with Firefox 4 before the first update.