When i had the last update installed, i shut down the browser last night, then when i opened firefox this morning, it automatically installed my update and then i realized that my panorama group taps button was missing. I found that after checking the support forums, but the ctrl +e shortcut still doesn't work. Also when i found it, all my groups had been erased, and i only had the tabs open that were in the specific group from when i shut my browser down last night. Then i thought it might have started up wrong, so i closed it down and it didn't even ask me if i wanted to save and exit my current tabs.. so when i started up firefox again, i had zero tabs up, and my history was completely gone so there was no way to get back all my tabs and groups from several days of things i had looked at or wanted to look at. Needless to say it was very frustrating, i don't know if there is a way to get it back or not, but i had just recently started doing the grouping tabs because it seems cool and organized, but now i have to worry about closing my browser and none of my tabs coming up again. I looked in the options to see if there was a thing to tell it to save my tabs on exit, cuz even now its not saving my tabs. The saving tabs on exit is the number one reason i like firefox..