[tbb-bugs] #20150 [Applications/Tor Browser]: Tor Browser's Update window initially shows "NaN/sec"

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#20150: Tor Browser's Update window initially shows "NaN/sec"
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 Reporter:  teor                      |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Changes (by mcs):

 * cc: brade, mcs (added)


Comment:

 This is probably also a bug in Firefox although I did not find a bug
 report at bugzilla.mozilla.org. There is a "Connecting to the update
 server…" message that is shown initially and presumably it is not supposed
 to be changed until the download size is known.

 Are you able to reproduce this reliably? On what OS? I have seen this in
 the past (but not recently) and I was not able to reproduce it with a
 6.0.4 to 6.0.5 update. From a quick read of the code, I would say it tries
 to avoid division by zero, but there are enough layers of code that I am
 not 100% sure (divide by zero does seem like the most likely root cause of
 this).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20150#comment:1>
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