Supported Versions of Firefox for Windows Systems
Operating System Latest Software Version
Windows 8.1 Firefox 34.0 (Beta 11)
Windows Server 2012 Firefox 34.0 (Beta 11)
Windows 8 Firefox 34.0 (Beta 11)
Windows 8 x64 Firefox 34.0 (Beta 11)
Windows 7 Firefox 34.0 (Beta 11)
Windows 7 x64 Firefox 34.0 (Beta 11)
Windows Server 2008 Firefox 34.0 (Beta 11)
Windows Vista Firefox 34.0 (Beta 11)
Windows Vista x64 Firefox 34.0 (Beta 11)
Windows XP Firefox 34.0 (Beta 11)
Windows XP x64 Firefox 34.0 (Beta 11)
Windows Server 2003 Firefox 34.0 (Beta 11)
Windows Server 2003 x64 Firefox 34.0 (Beta 11)
Windows ME Firefox 2.0.0.20
Windows 2000 Firefox 10.0.12 (ESR)
Windows 98 Firefox 2.0.0.20
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