Build identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b7pre) Gecko/20101005 Firefox/4.0b7pre 1. open terminal 2. from the location of the Firefox build, run: .Minefield.app/Contents/MacOS/firefox -profile new Expected: No terminal error messages; profile not found error message. Actual : profile not found error message; terminal shows error messages stating the following: 2010-10-05 09:41:01.990 firefox-bin[764:613] *** __NSAutoreleaseNoPool(): Object 0x1033e0360 of class __NSFastEnumerationEnumerator autoreleased with no pool in place - just leaking 2010-10-05 09:41:01.992 firefox-bin[764:613] *** __NSAutoreleaseNoPool(): Object 0x10319c950 of class TopLevelWindowData autoreleased with no pool in place - just leaking 2010-10-05 09:41:01.992 firefox-bin[764:613] *** __NSAutoreleaseNoPool(): Object 0x11b8f50b0 of class NSCFString autoreleased with no pool in place - just leaking 2010-10-05 09:41:01.996 firefox-bin[764:613] *** __NSAutoreleaseNoPool(): Object 0x10319b910 of class ToolbarWindow autoreleased with no pool in place - just leaking 2010-10-05 09:41:01.996 firefox-bin[764:613] *** __NSAutoreleaseNoPool(): Object 0x1031a34f0 of class WindowDelegate autoreleased with no pool in place - just leaking