Every time I open firefox all the tabs that were open during the previous session of browsing reopen. If there was only 1 tab open during the previous browsing session, then when i close it and reopen firefox, that same tab will open up. So in a way my homepage ends up being what my last open tab was. I tried restarting the computer, that didn't work. I tried reinstalling firefox, that didn't work. I think this starting happening after i last updated firefox. Any ideas?