Firefox for everyday browsing
The standard Firefox release is recommended for most users and receives regular feature, security and stability updates.
Download Firefox for
Windows
Windows
Get Firefox for Windows, macOS, Linux, Android or iOS. For desktop, the standard Firefox release is the best default for most users; ESR, Beta, Developer Edition and Nightly serve different support and testing needs.
Choose your Firefox release for everyday use, support, or testing.
Firefox Extended Support Release
Firefox ESR is built for organizations and users who prefer a longer support cycle with fewer major feature changes between ESR releases.
Firefox Beta and Developer Edition
Beta previews features close to stable release. Developer Edition adds developer-focused defaults and pre-release DevTools for testing upcoming Firefox behavior.
Firefox Nightly for early testing
Nightly contains the earliest Firefox development changes and can update once or twice a day, making it best suited to testing, bug reports and experimentation.
Firefox system requirements and CPU architecture
Match the Firefox build to your operating system and processor before installing, especially on older systems and Linux ARM devices.
Windows 10+ and macOS 10.15+
Current Firefox releases support Windows 10 or later and macOS 10.15 or later. Windows builds include 32-bit, 64-bit and ARM64 options where available; Mac builds support Intel and Apple silicon.
Linux 64-bit, ARM64 and APT packages
Firefox for Linux is available for 64-bit x86 and ARM64 systems. Debian, Ubuntu and related distributions can also use Mozilla’s APT repository.
Install Firefox in 3 steps
Choose the correct operating system and release channel, install Firefox, then move your bookmarks, passwords and browsing history.
Choose your operating system and Firefox build
Select Windows, macOS, Linux, Android or iOS. On desktop, choose standard Firefox unless you specifically need ESR, Beta, Developer Edition or Nightly.
Download and install Firefox
Run the Windows installer, open the macOS package, install the Linux build or package, or use the appropriate mobile app distribution for Android or iOS.
Import bookmarks, passwords and history
Firefox can import supported browser data after installation, including bookmarks, saved passwords and browsing history, so switching does not require rebuilding your setup from scratch.
Firefox download FAQs
Common questions about Firefox for Windows, Mac, Linux, Android and iOS, plus ESR, Developer Edition, Nightly and older operating systems.
How do I download Firefox for Windows?+
Choose Firefox for Windows and use the standard release for most personal computers. Firefox also provides 64-bit, 32-bit, ARM64 and MSI builds for supported Windows environments and deployment needs.
Which Firefox version should I download for Mac?+
Choose the current Firefox release for most Intel or Apple silicon Macs running macOS 10.15 or later. Older supported macOS versions may require an ESR release instead of the current standard build.
Should I download Firefox for Linux 64-bit or ARM64?+
Choose Linux 64-bit for most Intel and AMD desktop systems. Choose ARM64/AArch64 for 64-bit ARM hardware. Debian, Ubuntu and related distributions can also install Firefox through Mozilla’s APT repository.
How do I install Firefox on Android or iPhone?+
Choose Firefox for Android or Firefox for iOS and install the mobile build for your device. Android and iOS use mobile distribution and update systems rather than desktop installers.
What is the difference between Firefox, ESR, Beta, Developer Edition and Nightly?+
Firefox is the stable release recommended for most users. ESR follows a longer support cycle. Beta previews near-release features, Developer Edition combines pre-release Firefox with developer-focused defaults, and Nightly contains the earliest development changes.
Can I still install Firefox on an older version of Windows or macOS?+
Current Firefox releases require Windows 10 or later and macOS 10.15 or later. Some older systems may still have an ESR option, depending on Mozilla’s active support schedule.
Choose another Firefox language, platform or build
Firefox is available in more than 90 languages, with standard Release, ESR, Beta, Developer Edition and Nightly builds across supported desktop and mobile platforms.