[tbb-bugs] #21431 [Applications/Tor Browser]: Clean-up system extensions shipped in Firefox 52

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#21431: Clean-up system extensions shipped in Firefox 52
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 Reporter:  gk                              |          Owner:  tbb-team
     Type:  task                            |         Status:  new
 Priority:  Medium                          |      Milestone:
Component:  Applications/Tor Browser        |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  ff52-esr, TorBrowserTeam201702  |  Actual Points:
Parent ID:                                  |         Points:
 Reviewer:                                  |        Sponsor:
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Comment (by gk):

 Replying to [comment:4 mcs]:
 > Based on our research, Kathy and I think the only system extension we
 should consider shipping with Tor Browser is pdfjs (we did not review
 recent changes to pdfjs).
 >
 > For e10s, we will probably enable it for everyone or no one. For
 disabling of SHA-1 signatures, we already have the fix for #18042. The
 remaining system add-ons don't seem necessary.

 I think I agree with all of that (I have some thoughts about the e10s
 situation which I'll put into #21432 shortly).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21431#comment:9>
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