I am using Vista... this is the full error
Microsoft Visual C++ Debug Library
Debug Assertion Failed!
Program:C\Program Files\Mozzilla Firefox\firefox.exe
File: c:\program files\ microsoft visual studio 8\vc\include\list
For Information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts.
(Press Retry to debug the application)
When I hit retry is closes the program, I have tried removing plug ins from explorer that I added before this started happening... Just seeing if anyone knows a why to fix it with out me downloading more stuff or buying something..