[tor-bugs] #11783 [TorBrowserButton]: Torbutton: Unexpected error on new identity: TypeError: b.webProgress is undefined

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#11783: Torbutton: Unexpected error on new identity: TypeError: b.webProgress is
undefined
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 Reporter:  cypherpunks       |          Owner:  mikeperry
     Type:  defect            |         Status:  new
 Priority:  normal            |      Milestone:
Component:  TorBrowserButton  |        Version:
 Keywords:                    |  Actual Points:
Parent ID:                    |         Points:
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 Anybody yet observes this alert?
 TBB-3.6
 Everything worked fine before, and then suddenly alert message box. Last
 automatically updated add-on was Noscript 2.6.8.23

 Debugging showing that exception generated by
 {{{
 browser.addTab("about:blank");
 }}}
 from torbutton_close_on_toggle()

 Can't reliably reproduce this bug, everything works and then for the same
 sequence of actions this fail appears.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11783>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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