firefox -g GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/lib/firefox/firefox...(no debugging symbols found)...done. (gdb) firefox Undefined command: "firefox". Try "help". (gdb) start Function "main" not defined. Make breakpoint pending on future shared library load? (y or [n]) Starting program: /usr/lib/firefox/firefox warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffeb3ff700 (LWP 6823)] [Thread 0x7fffeb3ff700 (LWP 6823) exited] [New Thread 0x7fffeb3ff700 (LWP 6825)] [New Thread 0x7fffe8e64700 (LWP 6826)] [New Thread 0x7fffe3c43700 (LWP 6827)] [New Thread 0x7fffe28ff700 (LWP 6828)] [New Thread 0x7fffe18e5700 (LWP 6830)] [New Thread 0x7fffe10e4700 (LWP 6831)] [New Thread 0x7fffe08e3700 (LWP 6832)] [New Thread 0x7fffdfa82700 (LWP 6833)] [New Thread 0x7fffdec4d700 (LWP 6834)] [New Thread 0x7fffdd2ff700 (LWP 6835)] [New Thread 0x7fffdc8ff700 (LWP 6836)] [New Thread 0x7fffdb8ff700 (LWP 6837)] [New Thread 0x7fffdb0fe700 (LWP 6838)] [New Thread 0x7fffda7ff700 (LWP 6839)] [New Thread 0x7fffd9ffe700 (LWP 6840)] FoxyProxy settingsDir: /home/jessi/.mozilla/firefox/inx3jjcy.default-1383046839008/foxyproxy.xml [New Thread 0x7fffd4fff700 (LWP 6841)] [New Thread 0x7fffd3eff700 (LWP 6842)] [New Thread 0x7fffcd9ff700 (LWP 6843)] [New Thread 0x7fffcd1fe700 (LWP 6844)] [New Thread 0x7fffcc9fd700 (LWP 6845)] [Thread 0x7fffdd2ff700 (LWP 6835) exited] [Thread 0x7fffcd9ff700 (LWP 6843) exited] [New Thread 0x7fffdd2ff700 (LWP 6846)] [New Thread 0x7fffcd9ff700 (LWP 6847)] [New Thread 0x7fffcbdff700 (LWP 6848)] [New Thread 0x7fffcb5fe700 (LWP 6849)] [Thread 0x7fffcd9ff700 (LWP 6847) exited] [Thread 0x7fffcd1fe700 (LWP 6844) exited] [Thread 0x7fffdd2ff700 (LWP 6846) exited] [Thread 0x7fffcb5fe700 (LWP 6849) exited] [New Thread 0x7fffcd9ff700 (LWP 6850)] [New Thread 0x7fffcd1fe700 (LWP 6851)] [New Thread 0x7fffcb5fe700 (LWP 6852)] [New Thread 0x7fffdd2ff700 (LWP 6854)] [New Thread 0x7fffc93ff700 (LWP 6855)] [Thread 0x7fffcbdff700 (LWP 6848) exited] [Thread 0x7fffcd1fe700 (LWP 6851) exited] [Thread 0x7fffcb5fe700 (LWP 6852) exited] [New Thread 0x7fffcbdff700 (LWP 6857)] [New Thread 0x7fffcd1fe700 (LWP 6858)] [New Thread 0x7fffcb5fe700 (LWP 6860)] [New Thread 0x7fffc58ff700 (LWP 6861)] [New Thread 0x7fffc50fe700 (LWP 6862)] [Thread 0x7fffdd2ff700 (LWP 6854) exited] [New Thread 0x7fffddc44700 (LWP 6863)] [New Thread 0x7fffdd2ff700 (LWP 6864)] [New Thread 0x7fffc48fd700 (LWP 6865)] [New Thread 0x7fffc40fc700 (LWP 6866)] [New Thread 0x7fffc38fb700 (LWP 6867)] [New Thread 0x7fffc30fa700 (LWP 6868)] [New Thread 0x7fffc28f9700 (LWP 6869)] [New Thread 0x7fffc20f8700 (LWP 6870)] [New Thread 0x7fffc11ff700 (LWP 6871)] [New Thread 0x7fffc09fe700 (LWP 6872)] [New Thread 0x7fffc01fd700 (LWP 6873)] [New Thread 0x7fffbf9fc700 (LWP 6874)] [New Thread 0x7fffbf1fb700 (LWP 6875)] [New Thread 0x7fffbe9fa700 (LWP 6876)] [Thread 0x7fffdec4d700 (LWP 6834) exited] [New Thread 0x7fffdec4d700 (LWP 6877)] [New Thread 0x7fffbdeff700 (LWP 6878)] [New Thread 0x7fffbd6fe700 (LWP 6879)] [New Thread 0x7fffbcaff700 (LWP 6880)] [New Thread 0x7fffba9ff700 (LWP 6881)] [Thread 0x7fffba9ff700 (LWP 6881) exited] [New Thread 0x7fffba9ff700 (LWP 6882)] [Thread 0x7fffcb5fe700 (LWP 6860) exited] [New Thread 0x7fffcb5fe700 (LWP 6883)] [New Thread 0x7fffb93ff700 (LWP 6884)] [New Thread 0x7fffb71ff700 (LWP 6885)] [Thread 0x7fffba9ff700 (LWP 6882) exited] [New Thread 0x7fffba9ff700 (LWP 6886)] [Thread 0x7fffc38fb700 (LWP 6867) exited] [Thread 0x7fffc30fa700 (LWP 6868) exited] [New Thread 0x7fffb65ff700 (LWP 6887)] [New Thread 0x7fffc30fa700 (LWP 6888)] [New Thread 0x7fffc38fb700 (LWP 6889)] [New Thread 0x7fffb60ff700 (LWP 6890)] [Thread 0x7fffc38fb700 (LWP 6889) exited] [Thread 0x7fffb60ff700 (LWP 6890) exited] [Thread 0x7fffb71ff700 (LWP 6885) exited] [New Thread 0x7fffc38fb700 (LWP 6891)] [Thread 0x7fffc40fc700 (LWP 6866) exited] [New Thread 0x7fffc40fc700 (LWP 6892)] [Thread 0x7fffc40fc700 (LWP 6892) exited] [Thread 0x7fffbe9fa700 (LWP 6876) exited] [New Thread 0x7fffbe9fa700 (LWP 6893)] [Thread 0x7fffc30fa700 (LWP 6888) exited] [New Thread 0x7fffc30fa700 (LWP 6894)] [New Thread 0x7fffb60ff700 (LWP 6895)] [Thread 0x7fffbe9fa700 (LWP 6893) exited] [New Thread 0x7fffbe9fa700 (LWP 6908)] [Thread 0x7fffc30fa700 (LWP 6894) exited] [Thread 0x7fffb60ff700 (LWP 6895) exited] [New Thread 0x7fffb60ff700 (LWP 6911)] [New Thread 0x7fffc30fa700 (LWP 6912)] [New Thread 0x7fffb71ff700 (LWP 6913)] [New Thread 0x7fffa3fff700 (LWP 6914)] [New Thread 0x7fffa32ff700 (LWP 6915)] [Thread 0x7fffb60ff700 (LWP 6911) exited] [Thread 0x7fffc30fa700 (LWP 6912) exited] [Thread 0x7fffa32ff700 (LWP 6915) exited] [Thread 0x7fffa3fff700 (LWP 6914) exited] [Thread 0x7fffbe9fa700 (LWP 6908) exited] [Thread 0x7fffbf1fb700 (LWP 6875) exited] [Thread 0x7fffcd1fe700 (LWP 6858) exited] [Thread 0x7fffcb5fe700 (LWP 6883) exited] [Thread 0x7fffbcaff700 (LWP 6880) exited] [Thread 0x7fffb71ff700 (LWP 6913) exited] [New Thread 0x7fffb71ff700 (LWP 6919)] [Thread 0x7fffb93ff700 (LWP 6884) exited] [Thread 0x7fffb71ff700 (LWP 6919) exited] Program received signal SIGPIPE, Broken pipe. [Switching to Thread 0x7fffe28ff700 (LWP 6828)] 0x00007ffff71c42cc in send () from /lib/x86_64-linux-gnu/libpthread.so.0 (gdb) quit A debugging session is active. Inferior 1 [process 6820] will be killed. Quit anyway? (y or n) y