Another Firefox release means yet again my browser's going to quit working while I'm busy in the middle of the workday. It'll offer to restart, but it won't work, and then I'll have to reload all my pages manually.
I've been using Firefox since it was Phoenix. I never switched to Chrome at any point. This behavior is so damn annoying that it might be the one thing that actually gets me to switch.
I am on Nightly which updates 2x daily without problems. If restart doesn't work maybe try a re-install. Filing a bug would be great so Firefox devs can work with you to find a root cause.
On Windows it should background update now as well.
I've been using Firefox since it was Phoenix. I never switched to Chrome at any point. This behavior is so damn annoying that it might be the one thing that actually gets me to switch.