After upgrading again just days after a previous Mozilla Firefox update, my themes are now completely unavailable to me and do not appear at the top of the Firefox page even if i try changing from one to another and instead i have (Private Browsing) being displayed instead like i'm supposed to know or care what that means? Isn't all non - public browsing, "private browsing"? Is that to be my new theme? How hard is it for Mozilla to just leave the well - enough alone with the page and why provide upgrades every five days, your customers HATE it!