Working on Firefox

Welcome to the Firefox codebase. This is the home of the Firefox development process and source code documentation.

Making Changes To Firefox

• Firefox Contributors’ Quick Reference
• Working with stack of patches Quick Reference
• Phabricator vs GitHub
• Pocket Guide: Shipping Firefox
• Editor / IDE integration
• Getting reviews
• Levelling up
• How to submit a patch
• Data Collection
• Data Review
• Searchfox
• Firefox AI Coding Policy

Version control

• Introduction to Jujutsu
• Git Tricks

Code reviews

• Code Review FAQ
• Reviewer Checklist

Debugging

• Debugging Firefox

Signing

• Configure Development Certificate
• Signing Local macOS Builds

Additional Information

• Firefox Source Code Directory Structure
• Understanding Artifact Builds
• Firefox for Mobile Devices
• Supported Build Hosts and Targets
• Working with ESR115
• Engineering Show and Tell
• Filing good bugs