$ strace firefox execve("/usr/bin/firefox", ["firefox"], [/* 37 vars */]) = 0 brk(0) = 0x1520000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6733617000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=104667, ...}) = 0 mmap(NULL, 104667, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f67335fd000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0 mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6733077000 mprotect(0x7f67331f1000, 2093056, PROT_NONE) = 0 mmap(0x7f67333f0000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7f67333f0000 mmap(0x7f67333f5000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f67333f5000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67335fc000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67335fb000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67335fa000 arch_prctl(ARCH_SET_FS, 0x7f67335fb700) = 0 mprotect(0x7f67333f0000, 16384, PROT_READ) = 0 mprotect(0x617000, 4096, PROT_READ) = 0 mprotect(0x7f6733619000, 4096, PROT_READ) = 0 munmap(0x7f67335fd000, 104667) = 0 getpid() = 13132 rt_sigaction(SIGCHLD, {SIG_DFL, [CHLD], SA_RESTORER|SA_RESTART, 0x7f67330aaaf0}, {SIG_DFL, [], 0}, 8) = 0 geteuid() = 1000 brk(0) = 0x1520000 brk(0x1541000) = 0x1541000 getppid() = 13131 stat("/home/user", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/usr/bin/firefox", O_RDONLY) = 3 fcntl(3, F_DUPFD, 10) = 10 close(3) = 0 fcntl(10, F_SETFD, FD_CLOEXEC) = 0 rt_sigaction(SIGINT, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, {0x408189, ~[RTMIN RT_1], SA_RESTORER, 0x7f67330aaaf0}, NULL, 8) = 0 rt_sigaction(SIGQUIT, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7f67330aaaf0}, NULL, 8) = 0 rt_sigaction(SIGTERM, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGTERM, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7f67330aaaf0}, NULL, 8) = 0 read(10, "#!/bin/sh\n\n# Firefox launcher co"..., 8192) = 4576 pipe([3, 4]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f67335fb9d0) = 13133 close(4) = 0 read(3, "/usr/bin/firefox\n", 128) = 17 read(3, "", 128) = 0 close(3) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 13133 --- SIGCHLD (Child exited) @ 0 (0) --- pipe([3, 4]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f67335fb9d0) = 13134 close(4) = 0 read(3, "firefox\n", 128) = 8 read(3, "", 128) = 0 close(3) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 13134 --- SIGCHLD (Child exited) @ 0 (0) --- stat("/usr/lib/firefox-3.6.12/firefox", {st_mode=S_IFREG|0755, st_size=3934, ...}) = 0 stat("/home/user/.mozilla/firefox", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 stat("/home/user/.mozilla/firefox-3.1", 0x7fff71dea020) = -1 ENOENT (No such file or directory) stat("/home/user/.mozilla/firefox-3.5", 0x7fff71dea020) = -1 ENOENT (No such file or directory) stat("/home/user/.mozilla/firefox-3.6", 0x7fff71dea020) = -1 ENOENT (No such file or directory) execve("/usr/lib/firefox-3.6.12/firefox", ["/usr/lib/firefox-3.6.12/firefox"], [/* 38 vars */]) = 0 brk(0) = 0x1bb5000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f99d92a5000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=104667, ...}) = 0 mmap(NULL, 104667, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f99d928b000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0 mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f99d8d05000 mprotect(0x7f99d8e7f000, 2093056, PROT_NONE) = 0 mmap(0x7f99d907e000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7f99d907e000 mmap(0x7f99d9083000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f99d9083000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f99d928a000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f99d9289000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f99d9288000 arch_prctl(ARCH_SET_FS, 0x7f99d9289700) = 0 mprotect(0x7f99d907e000, 16384, PROT_READ) = 0 mprotect(0x617000, 4096, PROT_READ) = 0 mprotect(0x7f99d92a7000, 4096, PROT_READ) = 0 munmap(0x7f99d928b000, 104667) = 0 getpid() = 13132 rt_sigaction(SIGCHLD, {SIG_DFL, [CHLD], SA_RESTORER|SA_RESTART, 0x7f99d8d38af0}, {SIG_DFL, [], 0}, 8) = 0 geteuid() = 1000 brk(0) = 0x1bb5000 brk(0x1bd6000) = 0x1bd6000 getppid() = 13131 stat("/home/user", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/usr/lib/firefox-3.6.12/firefox", O_RDONLY) = 3 fcntl(3, F_DUPFD, 10) = 10 close(3) = 0 fcntl(10, F_SETFD, FD_CLOEXEC) = 0 rt_sigaction(SIGINT, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, {0x408189, ~[RTMIN RT_1], SA_RESTORER, 0x7f99d8d38af0}, NULL, 8) = 0 rt_sigaction(SIGQUIT, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7f99d8d38af0}, NULL, 8) = 0 rt_sigaction(SIGTERM, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGTERM, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7f99d8d38af0}, NULL, 8) = 0 read(10, "#!/bin/sh\n#\n# ***** BEGIN LICENS"..., 8192) = 3934 pipe([3, 4]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f99d92899d0) = 13135 close(4) = 0 read(3, "/usr/lib/firefox-3.6.12\n", 128) = 24 read(3, "", 128) = 0 close(3) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 13135 --- SIGCHLD (Child exited) @ 0 (0) --- pipe([3, 4]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f99d92899d0) = 13136 close(4) = 0 read(3, "firefox\n", 128) = 8 read(3, "", 128) = 0 close(3) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 13136 --- SIGCHLD (Child exited) @ 0 (0) --- stat("/usr/lib/firefox-3.6.12/run-mozilla.sh", {st_mode=S_IFREG|0755, st_size=10478, ...}) = 0 geteuid() = 1000 getgid() = 1000 getegid() = 1000 getgroups(0, NULL) = 8 getgroups(8, [4, 20, 24, 46, 104, 115, 122, 1000]) = 8 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f99d92899d0) = 13137 wait4(-1, (firefox-bin:13141): Gtk-WARNING **: Theme directory of theme Polar-Icons-2 has no size field (firefox-bin:13141): Gtk-WARNING **: Theme directory of theme Polar-Icons-2 has no size field [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 13137 --- SIGCHLD (Child exited) @ 0 (0) --- exit_group(0) = ?