How do I install Firefox on Mac?

Open Terminal, install Homebrew if you haven't already (visit brew.sh), then run `brew install --cask firefox`. The app will be downloaded and installed automatically. You can then run `firefox` from Terminal.

Yes, Firefox is completely free to use. It is also open source, so you can inspect and contribute to the code.

How do I uninstall Firefox?

Open Terminal and run `brew uninstall --cask firefox`. Homebrew will remove Firefox and all associated files cleanly. You can verify it was removed by running `brew list`.

What are alternatives to Firefox?

There are several web browsers apps available for macOS. Browse the Web Browsers category on Bundl.run to compare features, popularity, and install counts for similar tools.

How do I update Firefox to the latest version?

Run `brew upgrade --cask firefox` in Terminal to update to the latest version. You can also run `brew outdated` to check if an update is available.

Does Firefox work on Apple Silicon (M1/M2/M3/M4)?

Yes, Firefox can be installed on both Apple Silicon and Intel Macs via Homebrew. Homebrew automatically handles the correct version for your hardware.

Firefox for Mac (2026) — Review, Download & Install

Name: Firefox
Availability: InStock

Firefox screenshot — Firefox — Official Website

What is Firefox?

Web browser focused on privacy

Install with Homebrew

brew install --cask firefox

How to Install Firefox on Mac

Follow these steps to install Firefox using Homebrew, the most popular package manager for macOS. This works on both Apple Silicon (M1/M2/M3/M4) and Intel Macs.

1
Open Terminal
Launch Terminal from your Applications > Utilities folder, or press Cmd + Space and type "Terminal".
2
Install Homebrew
If you don't have Homebrew yet, paste the install script from brew.sh into Terminal and follow the prompts.
3
Run brew install --cask firefox
Paste the following command into Terminal and press Enter:
brew install --cask firefox
4
Verify Installation
Run `brew list` to confirm firefox is installed, then try `firefox --version` to check the version number.
5
Launch Firefox
Run `firefox` in your Terminal to start using it.

Troubleshooting

• If you see a permission error, try prefixing the command with sudo.
• If Homebrew can't find the package, run brew update first to refresh the package list.
• On Apple Silicon Macs, make sure Homebrew is installed at /opt/homebrew (the default for M-series chips).

Key Features

Easy installation via Homebrew

Regular updates and maintenance

Free to use

Open source codebase

Pros

✓Simple one-command installation
✓Well-maintained and regularly updated
✓Completely free to use

Cons

✗Requires Homebrew to be installed
✗macOS only

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About the Author

Sam Patel

Security & Privacy Researcher

Security SoftwarePrivacy ToolsNetwork Security

9+ years in cybersecurity · CISSP certified

What is Firefox?

Install with Homebrew

How to Install Firefox on Mac

Open Terminal

Install Homebrew

Run brew install --cask firefox

Verify Installation