I assumed it _did_ run in the socket process. Have we not shipped that? I have one in Nightly on mac but it appears not to be sandboxed so I'm not sure that helps much. (Maybe it's partially sandboxed and just doesn't trip the Activity Monitor "sandbox" definition?)
Bug 1607494 Comment 3 Edit History
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I assumed it _did_ run in the socket process. Have we not shipped that? I have one in Nightly on mac but it appears not to be sandboxed so I'm not sure that helps much. (Maybe it's partially sandboxed and just doesn't trip the Activity Monitor "sandbox" definition?) [Confirmed that Firefox 72 on Mac does NOT have a socket process]