[Bug 1964547]

[Gpascutto]

>Can you please clarify what does fix-optional status for firefox 100
mean for this bug?

It means that if there is a simple fix for the issue, release management
would've considered taking that fix into Firefox 100. As is hopefully
rather obvious, there isn't going to be a simple fix for this. It needs
a ton of work - that has progressed well, thankfully.

>I assume this bug will be fixed once video decoding has been moved to a
utility process (bug 1722051).

The utility process makes it easier to move things in a separate
processes each with a custom sandbox, but the plan is to fix the current
RDD process for VA-API support before we consider that. The difficulty
is adding support for exactly those features VA-API needs - multiplied
by each video driver having slightly different requirements. Once the
sandboxing code supports that we can look if there'd be a meaningful
security benefit in moving things around.

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https://bugs.launchpad.net/bugs/1964547

Title:
  [upstream] RDD sandbox prevents HW-accelerated video playback

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