Firefox system requirements
Windows
Operating Systems
* Windows 2000
* Windows XP
* Windows Server 2003
* Windows Vista
Minimum Hardware
* Pentium 233 MHz (Recommended: Pentium 500MHz or greater)
* 64 MB RAM (Recommended: 128 MB RAM or greater)
* 52 MB hard drive space
Mac
Operating Systems
* Mac OS X 10.4 and later
Minimum Hardware
* Macintosh computer with an Intel x86 or PowerPC G3, G4, or G5 processor
* 128 MB RAM (Recommended: 256 MB RAM or greater)
* 200 MB hard drive space
Linux
Software Requirements
Please note that 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+ 2.10 or higher
* GLib 2.12 or higher
* Pango 1.14 or higher
* X.Org 1.0 or higher
For optimal functionality, we recommend the following libraries or packages:
* NetworkManager 0.7 or higher
* DBus 1.0 or higher
* HAL 0.5.8 or higher
* GNOME 2.16 or higher
See also: Release notes