1916789 - Return source code for the Firefox-internal JS code to the profiler

Status: NEW

(DevTools :: Performance Tools (Profiler/Timeline), enhancement, P2)

Description

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

For the source code view, we should have a way to request the source code for the Firefox-internal JS code (chrome:// etc.).

They can be hosted on hg.mozilla.org, or for local builds, they can be found locally.

Question:
How do we get the content for a resource:// or chrome:// file?

• Local builds: access resources directly or through the Web Channel
• Nightly / Beta / Release resources: need a mapping from resource:// and chrome:// to the source file

The frontend side for this task: https://github.com/firefox-devtools/profiler/issues/5112