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I get a "JavaScript Application - Reference Error: XPCSafeJSObjectWrapper is not defined" error every time I try to open a new tab.

Posted

Like the Title says, every time I open a new blank tab on Firefox 4 Beta, I get an error that says "JavaScript Application - Reference Error: XPCSafeJSObjectWrapper is not defined" This never happened to me before upgrading a new version of the Firefox Beta some time ago...is there any way to fix this?

Chosen solution

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

Read this answer in context 3

Additional System Details

This happened

Every time Firefox opened

This started when...

I installed Firefox 4 Beta 5 or 6....

Installed Plug-ins

  • Unity Player 2.6.1f3
  • Shockwave Flash 10.1 r102
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • iTunes Detector Plug-in
  • DivX Web Player version 1.5.0.52
  • DivX® Content Upload Plugin
  • npdivxplayerplugin
  • 1.3
  • Next Generation Java Plug-in 1.6.0_23 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Yahoo Application State Plugin version 1.0.0.7
  • 4.0.51204.0
  • NPWLPG
  • Rhapsody Player Engine Plugin
  • Wacom Dynamic Link Library
  • Adobe PDF Plug-In For Firefox and Netscape 8.2.5
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0b9) Gecko/20100101 Firefox/4.0b9

More Information

cor-el
  • Top 10 Contributor
  • Moderator
10776 solutions 96959 answers

Chosen Solution

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

Question owner

Thanks, it worked!