For power users, fix reliability

OMG yes.  Thunderbird crashes monthly for my wife,
and when it does, she has to remove upwards of 10,000
duplicate messages from inbox, and go through a 
complicated ritual of compressing mail folders 
and resetting every single fucking folder's sort
options by hand.  This is a serious pain when you have
200 folders.  I swear to god she loses 8 hours of work
each time this happens.  And she's no novice.

I think one key to this is to get more forceful about
enabling the crash feedback widget.  If Thunderbird
notices it has crashed three times without that turned on,
it should get very persuasive about enabling it.

If gmail ever gets folders, Thunderbird is so toast for users
like my wife.