[tor-bugs] #18948 [Applications/Tor Browser]: improve update notification UX

[Tor Bug Tracker & Wiki]

#18948: improve update notification UX
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     Reporter:  mcs                       |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 As discussed on IRC, it is a little irritating (and potentially confusing)
 that Tor Browser displays "WARNING: this browser is out of date" but then
 directs users to choose "Check for Tor Browser Update" (clearly, the
 browser already knows that there is an update available).

 We could change the text of that Torbutton menu item to "Update Tor
 Browser" in this situation or we could go even further and add an "Update
 Now" button to the about:tor page.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18948>
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