If you see the "Your browser or operating system may not be supported." message when trying to run Page Speed for Firefox, please make sure your system is compatible with the supported platforms, listed below:

Supported Platforms

Mac OS X

• version 10.5 or higher
• x86 and x86_64 (PPC is not supported)
• 32-bit or 64-bit Firefox

Linux

• GLib 2.7 or higher
• x86 or x86-64
• 32-bit or 64-bit Firefox

Windows

• XP or newer
• 32-bit Firefox (64-bit Firefox is not supported)

Supported Browsers

We support the current stable Firefox release, and try to support beta releases. Likewise, we support the current stable Firebug release. If you are running a beta, please try the current stable release of Firefox and/or Firebug.

Additional Information

If your system is compatible with the requirements above and you continue to see this message, please file an issue in our tracker.