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bad script XDR magic number


When opening an asp.net application, i find this in the error console.

Timestamp: 3/7/2013 10:12:56 PM Error: bad script XDR magic number

What does this error mean ?

Also sometimes we get the following errors..

Timestamp: 3/7/2013 8:00:22 AM Error: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebNavigation.sessionHistory]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: chrome://global/content/bindings/browser.xml ::  :: line 716" data: no] Source File: chrome://global/content/bindings/browser.xml Line: 723

Timestamp: 3/7/2013 8:00:22 AM Error: this.docShell is null Source File: chrome://global/content/bindings/browser.xml Line: 323

Timestamp: 3/7/2013 8:00:22 AM Error: gBrowser.addProgressListener was called with a second argument, which is not supported. See bug 608628. Source File: chrome://browser/content/tabbrowser.xml

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.6 r602
  • Google Update
  • Next Generation Java Plug-in 10.13.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Google Talk Plugin Video Accelerator version:
  • Version
  • Adobe Shockwave for Director Netscape plug-in, version
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.4
  • 4.1.10329.0
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers


  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

  • Top 25 Contributor
  • Moderator
251 solutions 3015 answers


Thanks for reaching out to Mozilla Support about your issue. We value and appreciate you as a user.

Please update to version 19.0.2 to fix see if the issue is fixed.

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