TBB should not disable addon updates until Thandy works
It is pretty dangerous to block addon updates if we have no way to update (or even inform) users whose TBBs are out of date. Auto-updating things like Torbutton will at least keep TBB users' fingerprints more in sync, making it less obvious when they run outdated, vulnerable versions..
For other Thandy-stopgaps, see #2285 (moved) and the tickets mentioned in the comments there.