Firefox System Requirements
Firefox ESR 91.12.0
Windows
Operating Systems (32-bit and 64-bit)
- Windows 7
- Windows 8
- Windows 10
- Windows 11
Recommended Hardware
- Pentium 4 or newer processor that supports SSE2
- 512MB of RAM / 2GB of RAM for the 64-bit version
- 200MB of hard drive space
Mac
Operating Systems
- macOS 10.12
- macOS 10.13
- macOS 10.14
- macOS 10.15
- macOS 11
- macOS 12
Recommended Hardware
- Mac computer with an Intel x86 or Apple silicon processor
- 512 MB of RAM
- 200 MB hard drive space
GNU/Linux
Software Requirements
Please note that GNU/Linux distributors may provide packages for your distribution which have different requirements.
- Firefox will not run at all without the following libraries or packages:
- GTK+ 3.14 or higher
- X.Org 1.0 or higher (1.7 or higher is recommended)
- libstdc++ 4.8.1 or higher
- glibc 2.17 or higher
- For optimal functionality, we recommend the following libraries or packages:
- NetworkManager 0.7 or higher
- DBus 1.0 or higher
- GNOME 2.16 or higher
- PulseAudio