Firefox keeps going unresponsive after 10 to 30 minutes. I tried creating a new places thing. It didn't work, and oddly still let me restore my old session and kept my bookmarks, which it said I'd have to re-install. I'm only running two extensions, U-block and NoScript. It will go Unresponsive, remain so far minutes at a time, briefly return and then immediately go unresponsive again, just long enough for me to close a tab or shut down. Nothing I have done seems to fix this. I am on the latest Windows 10, Desktop, latest Firefox.