i formatted my computer, and used last session .Json files to restore my tabs from before. this allowed me to have my tabs. but even weeks after reinstalling, Firefox does something uncharacteristic. it opens with one window with one tab. then after a second or two, it closes. and then reopens with all the tabs. I would consider a re-install but i don't want to lose the tabs again, and i have 2 computers with different tab sessions (different users on the reformatted one as its a family computer) its functional but annoying. What can i do? i would include screenshots but you can't really screen grab a PROCESS, so that doesn't help here. i am running windows 10.