After the build completed I tried to launch firefox.exe (located within the C:\proj\mozilla\firefox-objdir\dist\bin folder). This opened up a console window, which scrolled through various pages after page of info before an displaying a NSGlue_Assertion error messages message similar to the following. After finding no results on a google search, I decided to just click ignore for this message (and the 2 that followed seconds later). The console kept scrolling and a few seconds later a GUI Firefox Brower Application Window entitle Minefield opened ! After taking the required screen shots of the Help->About page, I decided to see if I could actually browse the web. This worked with no problems. Upon closing the GUI Minefield Browser Window received a few more of the error messages mentioned above. However, after clicking ignore on all of them, the console window proceed to close. After discussing the matter with a few others, to my relief I realized that I was not the only one receiving the same error messages during startup and exit.