Comment 4 for bug 1333445

No need to apply a color extension to reproduce the bug. On Windows XP, Inkscape trunk revision 13445, opening the icon.svg file (or the one attached comment #1) and closing it just after it is loaded triggers the crash.

IMHO, the crash with the extensions is due to the fact that the extension system creates a temporary file, then applies the effect, loads the document and then delete the temporary file (which is equivalent to a File>Close and thus crashes the application).