[tor-bugs] #16335 [Tor Browser]: Investigate whether the Symbol data type can store global identifiers accessible to content

[Tor Bug Tracker & Wiki]

#16335: Investigate whether the Symbol data type can store global identifiers
accessible to content
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  task         |     Status:  new
     Priority:  major        |  Milestone:
    Component:  Tor Browser  |    Version:
   Resolution:               |   Keywords:  ff38-esr, tbb-linkability
Actual Points:               |  Parent ID:
       Points:               |
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Description changed by gk:

Old description:

> "To create symbols available across files and in a global scope-like
> environment, use the methods Symbol.for() and Symbol.keyFor() to set and
> retrieve symbols from the global symbol registry."
>
> If we need to disable this feature
> https://bugzilla.mozilla.org/show_bug.cgi?id=1066322 shows a way Mozilla
> used.

New description:

 "To create symbols available across files and in a global scope-like
 environment, use the methods Symbol.for() and Symbol.keyFor() to set and
 retrieve symbols from the global symbol registry."
 (https://developer.mozilla.org/en-
 US/docs/Web/JavaScript/Reference/Global_Objects/Symbol)

 If we need to disable this feature
 https://bugzilla.mozilla.org/show_bug.cgi?id=1066322 shows a way Mozilla
 used.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16335#comment:1>
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