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Getting Started

  • Getting Set Up To Work On The Firefox Codebase

Working On Firefox

  • Working on Firefox
  • Bug Handling

Firefox User Guide

  • Firefox DevTools User Docs

Source Code Documentation

  • Governance
  • Firefox Front-end
  • DOM
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  • Layout & CSS
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  • Firefox DevTools Contributor Docs
  • Toolkit
    • Add-on Manager
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    • Crash Manager
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    • Shield Recipe Client
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    • Messaging System Schemas
    • Picture-in-Picture
    • Prompts
      • Prompt Service
      • Prompt Service Reference
      • Prompt Modal Types
    • Subprocess Module
    • Telemetry
    • Firefox on Glean (FOG)
    • Toolkit Modules
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    • Fingerprinting Resistance
    • URL Classifier
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    • Managing the built-in en-US dictionary
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The Firefox Build System

  • Mach
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  • Build System
  • Firefox CI and Taskgraph
  • Managing Documentation

Testing & Test Infrastructure

  • Automated Testing
  • Turning on Firefox tests for a new configuration
  • Avoiding intermittent tests
  • Testing Policy
  • Configuration Changes
  • Browser chrome mochitests
  • Chrome Tests
  • Marionette
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  • WebRender Tests
  • Mochitest
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  • Sanitizer
  • Performance Testing
  • Code coverage
  • Testing & Debugging Rust Code

Releases & Updates

  • Mozilla Update Infrastructure
  • Watershed Updates
  • Desupport Updates

Localization & Internationalization

  • Internationalization
  • Localization

Firefox and Python

  • mozbase
  • Using third-party Python packages

Metrics Collected in Firefox

  • Metrics
Firefox Source Docs
  • Toolkit
  • Prompts
  • Report an issue / View page source

PromptsΒΆ

  • Prompt Service
  • Prompt Service Reference
  • Prompt Modal Types
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