[tor-bugs] #21549 [Applications/Tor Browser]: Investigate wasm for linkability/fingerprintability/disk avoidance issues

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#21549: Investigate wasm for linkability/fingerprintability/disk avoidance issues
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 Reporter:  gk                              |          Owner:  tbb-team
     Type:  task                            |         Status:  new
 Priority:  Very High                       |      Milestone:
Component:  Applications/Tor Browser        |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  ff60-esr, TorBrowserTeam201808  |  Actual Points:
Parent ID:                                  |         Points:
 Reviewer:                                  |        Sponsor:
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Old description:

> In order to avoid the asm.js disaster we should investigate whether wasm
> complies with our design requirements. It got enabled in Firefox 52 (and
> presumably in ESR 52 as well):
> https://bugzilla.mozilla.org/show_bug.cgi?id=1342060.

New description:

 In order to avoid the asm.js disaster we should investigate whether wasm
 complies with our design requirements. It got
 [[https://bugzilla.mozilla.org/show_bug.cgi?id=1342060|enabled in Firefox
 52]] but [[https://bugzilla.mozilla.org/show_bug.cgi?id=1342440|re-
 disabled in ESR 52]].

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Comment (by dmr):

 Replying to [comment:1 cypherpunks]:
 > {{{status-firefox-esr52:      disabled}}}
 > https://bugzilla.mozilla.org/show_bug.cgi?id=1342060#c23
 > But, please, don't postpone such tasks to the next esr.

 Indeed disabled in esr52.
 pref `javascript.options.wasm`

 More details (beyond the comment):
 https://bugzilla.mozilla.org/show_bug.cgi?id=1342440
 https://hg.mozilla.org/releases/mozilla-esr52/rev/e07850f191a0

 Changing the description so that others don't need to read comments to
 know about this.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21549#comment:9>
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