[tor-bugs] #4430 [TorBrowserButton]: Fully Disable Session Store+Restore

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#4430: Fully Disable Session Store+Restore
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 Reporter:  mikeperry                       |          Owner:  mikeperry                    
     Type:  defect                          |         Status:  new                          
 Priority:  critical                        |      Milestone:  TorBrowserBundle 2.2.x-stable
Component:  TorBrowserButton                |        Version:                               
 Keywords:  tbb-disk-leak, MikePerry201204  |         Parent:                               
   Points:                                  |   Actualpoints:                               
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Comment(by mikeperry):

 Ok, I disabled that component, got an easy repro, and it turns out that if
 you set *both* browser.sessionstore.max_entires and
 browser.sessionstore.max_resumed_crashes to 0, then Firefox seems to
 decide to set browser.sessionstore.privacy_level to 2 for you, and *then*
 it stops writing sessionstore.js at all. Who knows if we actually need to
 set all three, or just that magic last one...

 The extra good news is that this only sort of breaks "Undo closed tab".
 You still get the old url there, it just doesn't automatically reload?
 Good enough for me.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4430#comment:12>
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