[tbb-bugs] #30565 [Applications/Tor Browser]: roll back to previous version of TBB - saved logins and tabs lost after tor browser bundle upgrade (8.5)

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#30565: roll back to previous version of TBB - saved logins and tabs lost after tor
browser bundle upgrade (8.5)
-------------------------------------------------+-------------------------
 Reporter:  rollback-question                    |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_information
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-8.5-issues, tbb-regression,      |  Actual Points:
  TorBrowserTeam201905R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by mcs):

 * status:  needs_review => needs_information


Comment:

 I can't figure out how your broken browser got into the state it is in.
 The updater should never update some of the browser files and not other
 files.

 For the broken browser, do you have a last-update.log file? If one exists,
 it should be in `Browser/TorBrowser/UpdateInfo/updates/last-update.log`

 For the broken browser, can you try the following in a shell (or similar
 commands) when the `app.update.log` preference value is `true`:
  cd tor-browser_en-US
  mv Browser/TorBrowser/UpdateInfo ~/UpdateInfo-setaside
  mv Browser/TorBrowser/Data/Browser/profile.default/startupCache
 ~/startupCache-setaside
  ./start-tor-browser.desktop  --log /tmp/tb.log
 Then open the about box and let it try to update (including the restart
 step).
 Then exit the browser and attach the contents of `/tmp/tb.log` to this
 ticket (please sanitize to remove paths, etc. if you would like to do so).

 Another idea is to find out what files are different between your broken
 browser and the one that correctly updated to 8.5. To do that you would
 need to do a recursive diff of the two installations.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30565#comment:24>
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