Changes

If you see this output, you've successfully modified the pdb file.

Re-run visual studio (or WinDbg if you prefer) using your existing source server settings, attach to firefox.exe. After the symbols have been loaded, switch to the call stack. Keep in mind that the old xul.pdb had over 6000 indexed source files, while the new xul.pdb has only 6 indexed source files for testing purposes.