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Your system doesn't meet the requirements to run Firefox.

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Firefox

Firefox ESR 31.2.0 System Requirements

Windows

Operating Systems

  • Windows XP SP2
  • Windows Server 2003 SP1
  • Windows Vista
  • Windows 7
  • Windows 8

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

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

Mac

Operating Systems

  • Mac OS X 10.6
  • Mac OS X 10.7
  • Mac OS X 10.8
  • Mac OS X 10.9
  • Macintosh computer with an Intel x86 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+ 2.18 or higher
    • GLib 2.22 or higher
    • Pango 1.14 or higher
    • X.Org 1.0 or higher (1.7 or higher is recommended)
    • libstdc++ 4.3 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