How Does MS AJAX Manage to Crash Firefox?

Another day, another idiosyncrasy. I’m implementing the IScriptControl interface and have the following line which crashes Firefox upon page unload:

public IEnumerable<ScriptReference> GetScriptReferences ()
{
   yield return new ScriptReference (
      "MyNamespace.MyScriptControl.Panelbar.js", 
      this.GetType ().Asembly.FullName);
}

Firefox crashes cold with this:

By trial and error, I figured that the following line does not cause crashes:

public IEnumerable<ScriptReference> GetScriptReferences ()
{
 yield return new ScriptReference (
   Page.ClientScript.GetWebResourceUrl (
     typeof (MyControl), "MyNamespace.MyScriptControl.Panelbar.js"));
}

}

Go figure. On a scale of 1 (a hiccup) to 10 (absolutely weird), this issue scores a 10.

Crikey. Firefox can execute C# natively? That's impressive.

No, C# is not involved here. It's something about disposing of script controls that causes the crash.

Every software has bugs ...
Report it bck to MS or to Scott Hanselman and hope it will be fixed in next release.

@Milan: do you have any further knowledge of this?

I am having a nightmare making FCKeditor work properly as an IScriptControl. The component is *not* being disposed properly on postback, ultimately causing me lots of errors. Even if I work around the errors, it's surely destined for memory leaks since all the "disposed" components are still hanging around somewhere.

Do you know of any way to fix this?

Regards

Unfortunately, I don't. My suspicion is that something was going very wrong during page unload. If I put a delay in the dispose function, Firefox shut down nice and clean. Without a delay it was crashing every single time. I still don't understand how that one line of code caused such a serious issue.