A new crash reporter for Firefox

On April 23, Mozilla

announced that Firefox's crash reporter has been rewritten in Rust, allowing the
project to address a backlog of issues.

Even though it is important to properly handle main process crashes, the crash
reporter hasn't received significant development in a while (aside from
development to ensure that crash reports and telemetry continue to reliably be
delivered)! It has long been stuck in a local maximum of 'good enough' and
'scary to maintain': it features 3 individual GUI implementations (for Windows,
GTK+ for Linux, and macOS), glue code abstracting a few things (mostly in C++,
and Objective-C for macOS), a binary blob produced by obsoleted Apple
development tools, and no test suite. Because of this, there is a backlog of
features and improvements which haven't been acted on.