Firefox Source Docs

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

Firefox
DOM
Editor
Layout & CSS
Graphics
Processes, Threads and IPC
Firefox DevTools Contributor Docs
Toolkit
SpiderMonkey
Welcome to GeckoView’s documentation!
WebIDL
libpref
Networking
Remote Protocols
Services
File Handling
Firefox on macOS
Accessibility
Code quality
Writing Rust Code
Gecko Profiler
Performance
XPCOM
Network Security Services (NSS)

The Firefox Build System

Mach
Pushing to Try
Build System
TaskCluster Task-Graph Generation
Managing Documentation

Testing & Test Infrastructure

Testing Policy
Configuration Changes
Marionette
geckodriver
XPCShell tests
GTest
Fuzzing
Sanitizer
Performance Testing
Code coverage
Testing & Debugging Rust Code

Localization & Internationalization

Internationalization
Localization

Firefox and Python

mozbase
Using third-party Python packages

Metrics Collected in Firefox

Metrics

Firefox Source Docs

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Working on Firefox »
Debugging A Hang On macOS
View page source

Debugging A Hang On macOS¶

See How to Report a Hung Firefox.

See also¶

Debugging on macOS

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