We have Rust code in the tree and shipping, but using Rust code still has lots of pain points. This is a tracking bug for things we can do to make Rust development in Firefox easier and more productive.
Tier-1 ARM support is probably another blocker - not sure if there's a tracking bug on file for that somewhere. Also better gdb/lldb support, which we probably need Tromey for.
Priority: -- → P3
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