[tor-bugs] #23724 [Applications/Tor Browser]: NoScript restartless update breaks Security Slider and its icon disappears

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#23724: NoScript restartless update breaks Security Slider and its icon disappears
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 Reporter:  gk                        |          Owner:  tbb-team
     Type:  defect                    |         Status:  needs_revision
 Priority:  High                      |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Critical                  |     Resolution:
 Keywords:  noscript                  |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by gk):

 With a clean Tor Browser, replacing the NoScript version we ship with
 5.1.2rc1 before starting it with the first time works as expected, however
 the update results in the errors mentioned in comment:13 plus I see:
 {{{
 CustomizableUI:Widget 'noscript-tbb' not found, unable to move
 CustomizableUI.jsm:1149
 }}}
 and the icon jumping to the right. On subsequent restarts I get
 {{{
 [Exception... "Failure"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"
 location: "JS frame ::
 chrome://noscript/content/Restartless.jsm?0.8314032359350465.1507411166800
 :: loadIntoWindow :: line 193"  data: no]  (unknown)
 Could not overlay chrome://browser/content/browser.xul
 Restartless.jsm:224
 }}}
 .

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23724#comment:14>
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