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The "+" tab has disappeared.


I recently installed Firefox 4. It seem great. Initially it was fine, but the "+" tab to add a new tab disappeared at the end of the open tabs row has disappeared. I still have the shortcut at the top of the page, and, if i double click in the blank space next to the last tab in the row, a new tab then will open. Strange!

Additional System Details

This happened

Every time Firefox opened

This started when...

1 -2 days ago

Installed Plug-ins

  • Macromedia Authorware Web Player Netscape plug-in, version 2004
  • np-mswmp
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 10.0.1
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Shockwave Flash 10.2 r152
  • Adobe Shockwave for Director Netscape plug-in, version
  • iTunes Detector Plug-in
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_24 for Mozilla browsers
  • Office Live Update v1.5
  • Virtual Earth 3D 4.00090316005 plugin for Mozilla
  • Google Updater pluginhttp://pack.google.com/
  • Google Update


  • User Agent: Mozilla/5.0 (Windows NT 6.0; rv:2.0) Gecko/20100101 Firefox/4.0

More Information

Matt Brubeck 147 solutions 1390 answers

You can customize the toolbars and add the "Plus" tab back to your tab bar. For instructions, see Customize Firefox controls, buttons and toolbars