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I upgraded to 6.02 and still get this message from Gmail: "You are using an old version of Firefox which Gmail no longer supports. Some features may not work correctly. Upgrade to new version."

Posted

When I opened Gmail in my Firefox browser, I got a message I've never seen, before: "You are using an old version of Firefox which Gmail no longer supports. Some features may not work correctly. Upgrade to new version." I clicked on upgrade to a new version and was taken to the Mozilla site, where I downloaded the latest version of Firefox... then, when I restarted my computer, Gmail still gives me the same message!! What's going on?

Additional System Details

This happened

Every time Firefox opened

This started when...

I downloaded the latest version of Firefox.

Installed Plug-ins

  • Office Plugin for Netscape Navigator
  • npdivxplayerplugin
  • getplusplusadobe16260
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • 12.0.1.647
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealJukebox Netscape Plugin
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.5"
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • npmnqmp 071800999999
  • Shockwave Flash 10.3 r183
  • CANON iMAGE GATEWAY Album Plugin Utility Module
  • DivX VOD Helper Plug-in
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_27 for Mozilla browsers
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • Google Update
  • Version 0.9.17, copyright 2008-2010 Veetle Inchttp://www.veetle.com/
  • Version 0.9.18, Copyright 2006-2009 Veetle Inchttp://www.veetle.com/
  • Version 0.9.18, copyright 2006-2010 Veetle Inchttp://www.veetle.com/
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)

More Information

I haven't installed any new add-ons and nothing else has been changed... why does Gmail think I've got an old version of the Firefox browser? I've got the latest version of Firefox!!

cor-el
  • Top 10 Contributor
  • Moderator
10749 solutions 96724 answers

You posted with a Firefox 3.5.5. user agent:

  • Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)

See:

Supertekk 0 solutions 2 answers

Had the same problem, reset your user agent, solved it, here's the how to: https://support.mozilla.com/en-US/kb/Websites+or+add-ons+incorrectly+report+incompatible+browser

Denisb48 0 solutions 1 answers

I have another problem - Firefox no longer supports my Mac OSX so I can't download the latest Firefox. At least not without changing my operating system. Maybe that will be bad luck for Gmail...

cor-el
  • Top 10 Contributor
  • Moderator
10749 solutions 96724 answers

Firefox 4 and later require at least OS X 10.5 and a Mac with an Intel processor.

For an unofficial Firefox ESR 10.0.4 compatible version (TenFourFox) that runs on PowerPC Macs with OS X 10.4.11 or OS X 10.5.8 you can look at:

Be aware that TenFourFox doesn't support plugins.