Tabs gone wild! Choice of how tabs open is removed and function of having tabs open only at end of all tabs is gone. Instead, tabs now open next to similar or same site, so they can be jumping all over the place and instead of finding them in the order you opened them, you have to hunt around to see which site it is sitting by instead. I can easily remember the order in which I opened them, not so easy to remember the site each one may be associated with, especially if they were opened in the order of an article and therefore in the order I wanted to read them. == This happened == Every time Firefox opened == on this latest update 3.6