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DXR is Mozilla's code search and navigation tool, aimed at making sense of large projects like Firefox. It supports full-text and regex searches as well as structural queries like "Find all the callers of this function." Behind the scenes, it uses trigram indices, the re2 library, and structural data collected by a custom compiler plugin.

Try it here: http://dxr.mozilla.org/

Getting Started

  1. Stop by the #static channel on irc.mozilla.org and say hi. Some of the folks you might see include the main developers on the project. You can ping them if you have questions:
  2. Pop over to our Getting Started docs and follow the instructions.


DXR is an exciting project with lots of room for growth; more help is always appreciated. Grab a ticket you find interesting:

Easy ones to start with

No results.

0 Total; 0 Open (0%); 0 Resolved (0%); 0 Verified (0%);

All open bugs

Here they are.

Whatever you pick, be sure to stop by the IRC channel to make sure it's still relevant; there is always Bugzilla gardening to do.

Mailing List

The static analysis mailing list or newsgroup is where the wider Mozilla static analysis community hangs out. Big DXR announcements happen there.

Current Projects

Obsolete Stuff

Of historical interest at best: