I have tried to build mozilla seamonkey on my new ubuntu setup, but after compilling the program secfaults everytime my latest mozconfig: mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/suite-debug mk_add_options MOZ_CO_PROJECT=suite mk_add_options MOZ_MAKE_FLAGS=-j2 ac_add_options --enable-application=suite ac_add_options --enable-xft ac_add_options --disable-tests ac_add_options --disable-optimize ac_add_options --enable-debug ac_add_options --enable-default-toolkit=gtk2 ac_add_options --enable-xterm-updates ac_add_options --disable-strip The stack trace Program received signal SIGSEGV, Segmentation fault. 0x0000002a95848432 in non-virtual thunk to nsDirectoryService::AddRef() () from ./libxpcom_core.so (gdb) bt #0 0x0000002a95848432 in non-virtual thunk to nsDirectoryService::AddRef() () from ./libxpcom_core.so #1 0x0000002a95847358 in nsDirectoryService::QueryInterface (this=0x568a40, aIID=@0x4123d0, aInstancePtr=0x2a95a256e8) at /home/henrik/Projects/Mozilla/Source/mozilla/xpcom/io/nsDirectoryService.cpp:538 #2 0x0000002a95846f1c in nsDirectoryService::Create (outer=0x0, aIID=@0x4123d0, aResult=0x2a95a256e8) at /home/henrik/Projects/Mozilla/Source/mozilla/xpcom/io/nsDirectoryService.cpp:417 #3 0x0000002a958143bc in NS_InitXPCOM2_P (result=0x0, binDirectory=0x0, appFileLocationProvider=0x0) at /home/henrik/Projects/Mozilla/Source/mozilla/xpcom/build/nsXPComInit.cpp:477 #4 0x000000000040aaf3 in main (argc=1, argv=0x7fbffff538) at /home/henrik/Projects/Mozilla/Source/mozilla/xpfe/bootstrap/nsAppRunner.cpp:1751 Gcc version:gcc (GCC) 3.3.5 (Debian 1:3.3.5-8ubuntu2) System is Amd64: people on #developer suggested it might be similar to http://lists.debian.org/debian-amd64/2004/06/msg00410.html but I'm using a mozilla.org source pulled from CVS same day as this bug report is created. I have also tried non debug builds, and without the --disable-strip

this was reported in bug 249475 before... *** This bug has been marked as a duplicate of 249475 ***