[tbb-bugs] #22158 [Applications/Tor Browser]: Tor browser core dump on Arch Linux

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri May 5 18:42:53 UTC 2017

#22158: Tor browser core dump on Arch Linux
 Reporter:  jb.1234abcd               |          Owner:  tbb-team
     Type:  defect                    |         Status:  needs_information
 Priority:  High                      |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-crash                 |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:

Comment (by gk):

 Replying to [comment:6 jb.1234abcd]:
 > Btw, in unrelated matter, I see an error msg on TB startup:
 > $ gdb
 > ...
 > (gdb) file Downloads/tor-browser_en-US/Browser/firefox
 > (gdb) run
 > ...
 > May 05 16:27:29.000 [notice] Bootstrapped 100%: Done
 > [New Thread 0x7fffd26ff700 (LWP 12887)]
 > [New Thread 0x7fffc06ff700 (LWP 12888)]
 > May 05 16:27:31.000 [notice] New control connection opened from
 > [New Thread 0x7fffbf9ff700 (LWP 12889)]
 > May 05 16:27:31.000 [notice] New control connection opened from
 > [New Thread 0x7fffbe9ff700 (LWP 12890)]
 > ...
 > [Thread 0x7fffbd1fc700 (LWP 12893) exited]
 > 1493994511800 addons.productaddons    ERROR   Request failed certificate
 checks: [Exception... "SSL is required and URI scheme is not https."
 nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)"  location: "JS frame ::
 resource://gre/modules/CertUtils.jsm :: checkCert :: line 145"  data: no]
 > ...
 > The ERROR shows up every time, but it does not have impact on TB (from
 user point of view).

 That is a bit confusing but harmless. What happens is that Tor Browser
 checks for add-on updates but we prevent pinging Mozilla servers for
 Torbutton and Tor Launcher by setting the update url to
 `data:text/plain,`. The code is complaining then that cert validation
 fails as it expects an HTTPS URL and thus a certificate.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22158#comment:9>
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