Download Firefox 5 & System Requirements

Windows
Operating Systems

* Windows 2000
* Windows XP
* Windows Server 2003
* Windows Vista
* Windows 7

Please note that while the 32-bit and 64-bit versions of Windows Vista and Windows 7 can be used to run Firefox 5, only 32-bit builds of Firefox 5 are supported at this time.
Recommended Hardware

* Pentium 4 or newer processor that supports SSE2
* 512MB of RAM
* 200MB of hard drive space

Mac
Operating Systems

* Mac OS X 10.5
* Mac OS X 10.6

Recommended Hardware

* Macintosh computer with an Intel x86 processor
* 512 MB of RAM
* 200 MB hard drive space

Linux
Software Requirements
Please note that Linux distributors may provide packages for your distribution which have different requirements.