I was surfing, so I'm not sure what URL I had loaded or what URL I was about to load. But I got a crash blowing my stack, with thousands of these calling down recursively: nsDocumentOpenInfo::OnStartRequest(nsDocumentOpenInfo * const 0x0d5c4b40, nsIChannel * 0x0c92b7a0, nsISupports * 0x00000000) line 254 + 34 bytes I think I clicked on a bookmark in my sidebar while another page was still loading, if that makes any difference. Will try to narrow down how this happened.

sorry, should have said: debug build on WinNT, bits from 10:30 am this morning.

eureka! the problem is simply loading this url: http://channel.web.aol.com/preview.cdf This is from the "Imported IE Favorites" folder in my bookmarks. It doesn't matter how you load it, from bookmarks, typing it into url bar, etc.

My build isn't done yet. I wonder what kind of content type is associated with cdf?

When I try this link in navigator I get an unknown file type */* alert. When I paste the URL in the addressbar of ie and hit enter it prompts me to add a "AOL Preview Channel" to the ie sidebar. if I accept it then loads http://channel.web.aol.com/channel2/index.html in the content area.

No crash using the 2000-04-09-08-M15 nightly binary on WinNT; loading preview.cdf behaves the same as NN 4.x, with an Unknown File Type Dialog for type */*; saving or cancelling work fine. IIRC, .cdf is for the MS-proprietary Channel Definition Format. This is not the only bug recently having to do with crashes with unknown content types: see bug 29360, "Crash after Unknown Type dialog comes up.", FIXED just post-M14.

This sure does look like a DUP of bug 29858, "File type of */* crashes Mozilla.", FIXED -- identical URL and problem. *** This bug has been marked as a duplicate of 29858 ***

dupe of bug 29858