Torbutton showed Tor as disabled randomly
I was browsing the bug tracker and suddenly my torbutton said Tor is disabled and torbutton had a big X. Using TBB on Unix 64 with all default settings + high security slider. Didn't investigate further as I closed TBB and didn't want to be deanonymized. After restart TBB is normal.
This never happened before and I have no idea why it happened.