I do not have a recipe to reproduce it but randomly firefox will crash while on youtube.com

Program received signal SIGSEGV, Segmentation fault.
0xf66d531d in type_node_check_conformities_UorL (type_instance=0xf0b8e130, 
    iface_type=3984027520)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c:3192
3192	/build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c: No such file or directory.
	in /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c
(gdb) bt full
#0  0xf66d531d in type_node_check_conformities_UorL (type_instance=0xf0b8e130, 
    iface_type=3984027520)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c:3192
No locals.
#1  type_node_conforms_to_U (type_instance=0xf0b8e130, iface_type=3984027520)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c:3226
No locals.
#2  IA__g_type_check_instance_is_a (type_instance=0xf0b8e130, 
    iface_type=3984027520)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gtype.c:3695
        node = 0xed0fffd0
        iface = 0xed776f80
        check = 1
#3  0xed235603 in swfdec_as_frame_set_this (frame=0xffff79e8, thisp=0xf0b8e130)
    at swfdec_as_frame.c:347
        __t = 39
        __r = <value optimized out>
        __PRETTY_FUNCTION__ = "swfdec_as_frame_set_this"
#4  0xed24413a in swfdec_as_script_function_call (function=0xed3b9220, 
    thisp=0xf0b8e130, construct=0, super_reference=0xed3b7cd0, n_args=0, 
---Type <return> to continue, or q <return> to quit---
    args=0x0, return_value=0x0) at swfdec_as_script_function.c:68
        script = 0xed3b9220
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff7bc8, function = 0xed3b9220, thisp = 0, 
          super = 0x0, construct = 0, return_value = 0x0, argc = 0, 
          argv = 0x0, script = 0xed3b91f0, scope_chain = 0xea485818, 
          block_start = 0x0, 
          block_end = 0xffffffff <Address 0xffffffff out of bounds>, 
          blocks = 0xf102c4a0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0x0, 
          registers = 0xf102c520, n_registers = 5, constant_pool = 0xe7d01000, 
          stack_begin = 0xed376030, pc = 0xed389879 "\226\2"}
#5  0xed235dba in swfdec_as_function_call_full (function=0xed3b9220, 
    thisp=0xf0b8e130, construct=0, super_reference=0xed3b7cd0, n_args=0, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#6  0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=0, 
    super=0xed3b7cd0) at swfdec_as_interpret.c:819
        fun = 0xed3b9220
        thisp = 0xf0b8e130
        __PRETTY_FUNCTION__ = "swfdec_action_call"
#7  0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
---Type <return> to continue, or q <return> to quit---
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xf0b8e130
        super = <value optimized out>
        pobj = 0xed3b7cd0
        name = 0xed7b1988 "unloadMovie"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#8  0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xf2754d90
        spec = 0xed2fa748
        startpc = 0xed301000 "CWS\t\20\b\6"
        pc = 0xed32785b "R\27\226\4"
        endpc = 0xed361810 ""
        nextpc = 0xed32785c "\27\226\4"
        exitpc = 0xed327a66 "O\226\4"
        check = 0x0
        action = 82
        len = 0
        data = 0x0
        original_version = 9
        step = 0
        check_block = 1
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
---Type <return> to continue, or q <return> to quit---
#9  0xed2440f1 in swfdec_as_script_function_call (function=0xf2754dc0, 
    thisp=0xecc3d5b0, construct=0, super_reference=0xf27540d0, n_args=0, 
    args=0x0, return_value=0x0) at swfdec_as_script_function.c:84
        script = 0xf2754dc0
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff7da8, function = 0xf2754dc0, thisp = 3972257159, 
          super = 0xe80b4700, construct = 0, return_value = 0x0, argc = 0, 
          argv = 0x0, script = 0xf2754d90, scope_chain = 0xea485810, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
          blocks = 0xf102c2a0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0xe80b4790, 
          registers = 0xf1396fe0, n_registers = 4, constant_pool = 0xea53a400, 
          stack_begin = 0xed376030, pc = 0xed32785b "R\27\226\4"}
#10 0xed235dba in swfdec_as_function_call_full (function=0xf2754dc0, 
    thisp=0xecc3d5b0, construct=0, super_reference=0xf27540d0, n_args=0, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#11 0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=0, 
    super=0xf27540d0) at swfdec_as_interpret.c:819
        fun = 0xf2754dc0
        thisp = 0xecc3d5b0
        __PRETTY_FUNCTION__ = "swfdec_action_call"
---Type <return> to continue, or q <return> to quit---
#12 0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xecc3d5b0
        super = <value optimized out>
        pobj = 0xf27540d0
        name = 0xf2750cf8 "wipeOn"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#13 0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xf278bd00
        spec = 0xed2fa748
        startpc = 0xed301000 "CWS\t\20\b\6"
        pc = 0xed3423e0 "R\27\231\2"
        endpc = 0xed361810 ""
        nextpc = 0xed3423e1 "\27\231\2"
        exitpc = 0xed342405 "O\226\4"
        check = 0x0
        action = 82
        len = 0
        data = 0x0
        original_version = 9
        step = 0
        check_block = 1
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
#14 0xed2440f1 in swfdec_as_script_function_call (function=0xf278bd30, 
    thisp=0xecd5a400, construct=0, super_reference=0xf278b490, n_args=0, 
    args=0x0, return_value=0xffff7f38) at swfdec_as_script_function.c:84
        script = 0xf278bd30
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff7ee4, function = 0xf278bd30, thisp = 3973402919, 
          super = 0xe80b4340, construct = 0, return_value = 0xffff7f38, 
          argc = 0, argv = 0x0, script = 0xf278bd00, scope_chain = 0xea485800, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
          blocks = 0xf0c35580, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0xe80b43d0, 
          registers = 0xf102c100, n_registers = 5, constant_pool = 0xe92a6000, 
          stack_begin = 0xed376030, pc = 0xed3423e0 "R\27\231\2"}
#15 0xed235dba in swfdec_as_function_call_full (function=0xf278bd30, 
    thisp=0xecd5a400, construct=0, super_reference=0xf278b490, n_args=0, 
    args=0x0, return_value=0xffff7f38) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#16 0xed235e9d in swfdec_as_function_apply (cx=0xf092b000, object=0xf278bd60, 
    argc=2, argv=0xea4857f0, ret=0xffff7f38) at swfdec_as_function.c:168
        __thisp = 0xecd5a400
        argv_pass = 0x0
---Type <return> to continue, or q <return> to quit---
        length = 0
        fun = 0xf278bd30
        thisp = 0xecd5a400
#17 0xed23f78f in swfdec_as_native_function_call (function=0xed7ab8e0, 
    thisp=0xf278bd60, construct=0, super_reference=0xed7ab550, n_args=2, 
    args=0x0, return_value=0x0) at swfdec_as_native_function.c:113
        native = 0xed7ab8e0
        cx = 0xf092b000
        frame = {next = 0xffff80c8, function = 0xed7ab8e0, thisp = 4067999078, 
          super = 0x0, construct = 0, return_value = 0x0, argc = 2, 
          argv = 0x0, script = 0x0, scope_chain = 0x0, block_start = 0x0, 
          block_end = 0xffffffff <Address 0xffffffff out of bounds>, 
          blocks = 0xf0c35540, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0x0, registers = 0x0, 
          n_registers = 0, constant_pool = 0x0, stack_begin = 0xed376030, 
          pc = 0x0}
        rval = 0
        argv = 0xea4857f0
        __PRETTY_FUNCTION__ = "swfdec_as_native_function_call"
#18 0xed235dba in swfdec_as_function_call_full (function=0xed7ab8e0, 
    thisp=0xf278bd60, construct=0, super_reference=0xed7ab550, n_args=2, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
---Type <return> to continue, or q <return> to quit---
#19 0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=2, 
    super=0xed7ab550) at swfdec_as_interpret.c:819
        fun = 0xed7ab8e0
        thisp = 0xf278bd60
        __PRETTY_FUNCTION__ = "swfdec_action_call"
#20 0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xf278bd60
        super = <value optimized out>
        pobj = 0xed7ab550
        name = 0xed2d0048 "apply"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#21 0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xf1502e50
        spec = 0xed2fa748
        startpc = 0xed301000 "CWS\t\20\b\6"
        pc = 0xed323f27 "R>\207\1"
        endpc = 0xed361810 ""
        nextpc = 0xed323f28 ">\207\1"
        exitpc = 0xed323f29 "\207\1"
        check = 0x0
        action = 82
---Type <return> to continue, or q <return> to quit---
        len = 0
        data = 0x0
        original_version = 9
        step = 0
        check_block = 1
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
#22 0xed2440f1 in swfdec_as_script_function_call (function=0xf1502e80, 
    thisp=0xe80b4220, construct=0, super_reference=0x0, n_args=0, args=0x0, 
    return_value=0xffff8258) at swfdec_as_script_function.c:84
        script = 0xf1502e80
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff8204, function = 0xf1502e80, thisp = 3893051942, 
          super = 0x0, construct = 0, return_value = 0xffff8258, argc = 0, 
          argv = 0x0, script = 0xf1502e50, scope_chain = 0xea4857d0, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
          blocks = 0xed7e3ba0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0xe80b4280, 
          registers = 0xea4857b8, n_registers = 2, constant_pool = 0xe91750b0, 
          stack_begin = 0xed376028, pc = 0xed323f27 "R>\207\1"}
#23 0xed235dba in swfdec_as_function_call_full (function=0xf1502e80, 
    thisp=0xe80b4220, construct=0, super_reference=0x0, n_args=0, args=0x0, 
    return_value=0xffff8258) at swfdec_as_function.c:101
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#24 0xed235e9d in swfdec_as_function_apply (cx=0xf092b000, object=0xf1502eb0, 
    argc=2, argv=0xea4857b0, ret=0xffff8258) at swfdec_as_function.c:168
        __thisp = 0xe80b4220
        argv_pass = 0x0
        length = 8
        fun = 0xf1502e80
        thisp = 0xe80b4220
#25 0xed23f78f in swfdec_as_native_function_call (function=0xed7ab8e0, 
    thisp=0xf1502eb0, construct=0, super_reference=0xed7ab550, n_args=2, 
    args=0x0, return_value=0x0) at swfdec_as_native_function.c:113
        native = 0xed7ab8e0
        cx = 0xf092b000
        frame = {next = 0xffff83e8, function = 0xed7ab8e0, thisp = 4048563894, 
          super = 0x0, construct = 0, return_value = 0x0, argc = 2, 
          argv = 0x0, script = 0x0, scope_chain = 0x0, block_start = 0x0, 
          block_end = 0xffffffff <Address 0xffffffff out of bounds>, 
          blocks = 0xed7e37c0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0x0, registers = 0x0, 
          n_registers = 0, constant_pool = 0x0, stack_begin = 0xed376028, 
          pc = 0x0}
        rval = 0
        argv = 0xea4857b0
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "swfdec_as_native_function_call"
#26 0xed235dba in swfdec_as_function_call_full (function=0xed7ab8e0, 
    thisp=0xf1502eb0, construct=0, super_reference=0xed7ab550, n_args=2, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#27 0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=2, 
    super=0xed7ab550) at swfdec_as_interpret.c:819
        fun = 0xed7ab8e0
        thisp = 0xf1502eb0
        __PRETTY_FUNCTION__ = "swfdec_action_call"
#28 0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xf1502eb0
        super = <value optimized out>
        pobj = 0xed7ab550
        name = 0xed2d0048 "apply"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#29 0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xed3fd400
        spec = 0xed2fa748
        startpc = 0xed301000 "CWS\t\20\b\6"
        pc = 0xed3066a7 "R\27\226\4"
---Type <return> to continue, or q <return> to quit---
        endpc = 0xed361810 ""
        nextpc = 0xed3066a8 "\27\226\4"
        exitpc = 0xed3066e4 "O\226\4"
        check = 0x0
        action = 82
        len = 0
        data = 0x0
        original_version = 9
        step = 0
        check_block = 1
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
#30 0xed2440f1 in swfdec_as_script_function_call (function=0xed3fd430, 
    thisp=0xf150d100, construct=0, super_reference=0xed3fc940, n_args=1, 
    args=0x0, return_value=0x0) at swfdec_as_script_function.c:84
        script = 0xed3fd430
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff85c8, function = 0xed3fd430, thisp = 4048605446, 
          super = 0xe80b40a0, construct = 0, return_value = 0x0, argc = 1, 
          argv = 0x0, script = 0xed3fd400, scope_chain = 0xea4857a8, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
          blocks = 0xed7e37a0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0xe80b4130, 
---Type <return> to continue, or q <return> to quit---
          registers = 0xf1372480, n_registers = 3, constant_pool = 0xe923e000, 
          stack_begin = 0xed376020, pc = 0xed3066a7 "R\27\226\4"}
#31 0xed235dba in swfdec_as_function_call_full (function=0xed3fd430, 
    thisp=0xf150d100, construct=0, super_reference=0xed3fc940, n_args=1, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#32 0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=1, 
    super=0xed3fc940) at swfdec_as_interpret.c:819
        fun = 0xed3fd430
        thisp = 0xf150d100
        __PRETTY_FUNCTION__ = "swfdec_action_call"
#33 0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xf150d100
        super = <value optimized out>
        pobj = 0xed3fc940
        name = 0xed3f7728 "complete"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#34 0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xed3fcf40
        spec = 0xed2fa748
        startpc = 0xed301000 "CWS\t\20\b\6"
---Type <return> to continue, or q <return> to quit---
        pc = 0xed3062e5 "R\27O\226\4"
        endpc = 0xed361810 ""
        nextpc = 0xed3062e6 "\27O\226\4"
        exitpc = 0xed3062e7 "O\226\4"
        check = 0x0
        action = 82
        len = 0
        data = 0x0
        original_version = 9
        step = 0
        check_block = 1
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
#35 0xed2440f1 in swfdec_as_script_function_call (function=0xed3fcf70, 
    thisp=0xf150d100, construct=0, super_reference=0xed3fc940, n_args=1, 
    args=0x0, return_value=0x0) at swfdec_as_script_function.c:84
        script = 0xed3fcf70
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0xffff87a8, function = 0xed3fcf70, thisp = 4048605446, 
          super = 0xe80b2f70, construct = 0, return_value = 0x0, argc = 1, 
          argv = 0x0, script = 0xed3fcf40, scope_chain = 0xe9122fc8, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
          blocks = 0xed442f20, target = 0xed488e00, 
---Type <return> to continue, or q <return> to quit---
          original_target = 0xed488e00, activation = 0xe80b4040, 
          registers = 0xed7e35a0, n_registers = 7, constant_pool = 0xe923e000, 
          stack_begin = 0xed37601c, pc = 0xed3062e5 "R\27O\226\4"}
#36 0xed235dba in swfdec_as_function_call_full (function=0xed3fcf70, 
    thisp=0xf150d100, construct=0, super_reference=0xed3fc940, n_args=1, 
    args=0x0, return_value=0x0) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#37 0xed239e43 in swfdec_action_call (cx=<value optimized out>, n_args=1, 
    super=0xed3fc940) at swfdec_as_interpret.c:819
        fun = 0xed3fcf70
        thisp = 0xf150d100
        __PRETTY_FUNCTION__ = "swfdec_action_call"
#38 0xed23a060 in swfdec_action_call_method (cx=0xf092b000, action=82, 
    data=0x0, len=0) at swfdec_as_interpret.c:901
        obj = 0xf150d100
        super = <value optimized out>
        pobj = 0xed3fc940
        name = 0xed3fabb8 "render"
        __PRETTY_FUNCTION__ = "swfdec_action_call_method"
#39 0xed2315d0 in swfdec_as_context_run (context=0xf092b000)
    at swfdec_as_context.c:1023
        script = 0xed3fd0a0
        spec = 0xed2fa748
---Type <return> to continue, or q <return> to quit---
        startpc = 0xed301000 "CWS\t\20\b\6"
        pc = 0xed3063ca "R\27\231\2"
        endpc = 0xed361810 ""
        nextpc = 0xed3063cb "\27\231\2"
        exitpc = 0xed3063d6 "O\226\4"
        check = 0x0
        action = 82
        len = 0
        data = 0x0
        original_version = 4294967295
        step = 0
        check_block = 1
        __PRETTY_FUNCTION__ = "swfdec_as_context_run"
#40 0xed2440f1 in swfdec_as_script_function_call (function=0xed3fd0d0, 
    thisp=0xec396ee0, construct=0, super_reference=0xed3b7cd0, n_args=0, 
    args=0x0, return_value=0xffff8878) at swfdec_as_script_function.c:84
        script = 0xed3fd0d0
        context = 0xf092b000
        old_sandbox = 0xed7ab100
        frame = {next = 0x0, function = 0xed3fd0d0, thisp = 3963107175, 
          super = 0xe80b2520, construct = 0, return_value = 0xffff8878, 
          argc = 0, argv = 0x0, script = 0xed3fd0a0, scope_chain = 0xe9122c20, 
          block_start = 0xed301000 "CWS\t\20\b\6", block_end = 0xed361810 "", 
---Type <return> to continue, or q <return> to quit---
          blocks = 0xed442ec0, target = 0xed488e00, 
          original_target = 0xed488e00, activation = 0xe80b25b0, 
          registers = 0xed442ee0, n_registers = 7, constant_pool = 0xe923e000, 
          stack_begin = 0xed37600c, pc = 0xed3063ca "R\27\231\2"}
#41 0xed235dba in swfdec_as_function_call_full (function=0xed3fd0d0, 
    thisp=0xec396ee0, construct=0, super_reference=0xed3b7cd0, n_args=0, 
    args=0x0, return_value=0xffff8878) at swfdec_as_function.c:101
        __PRETTY_FUNCTION__ = "swfdec_as_function_call_full"
#42 0xed243958 in swfdec_as_relay_call (relay=0xeccf5800, 
    name=0xed2cc418 "onEnterFrame", argc=0, argv=0x0, return_value=0xffff8878)
    at swfdec_as_relay.c:139
        __thisp = 0xec396ee0
        tmp = 0
        fun = 0xed3fd0d0
        __PRETTY_FUNCTION__ = "swfdec_as_relay_call"
#43 0xed22b5aa in swfdec_actor_execute (actor=0xeccf5800, 
    condition=SWFDEC_EVENT_ENTER, key=0 '\0') at swfdec_actor.c:280
        thisp = 0xeccf5800
        name = 0xed2cc418 "onEnterFrame"
        version = 9
        need_constructor = 0
        __PRETTY_FUNCTION__ = "swfdec_actor_execute"

#44 0xed282751 in swfdec_player_do_action (player=0xf092b000)
---Type <return> to continue, or q <return> to quit---
    at swfdec_player.c:529
        priv = 0xf092b0c0
        i = <value optimized out>
#45 swfdec_player_perform_actions (player=0xf092b000) at swfdec_player.c:1843
        __PRETTY_FUNCTION__ = "swfdec_player_perform_actions"
#46 0xed286d1a in swfdec_player_iterate (timeout=0xf092b2ac)
    at swfdec_player.c:1770
        priv = 0xf092b0c0
        player = 0xf092b000
        walk = 0x0
        __PRETTY_FUNCTION__ = "swfdec_player_iterate"
#47 0xed28532e in swfdec_player_do_advance (player=0xf092b000, msecs=4, 
    audio_samples=176) at swfdec_player.c:1829
        priv = 0xf092b0c0
        timeout = 0xf092b2ac
        target_time = 26174260224
        __PRETTY_FUNCTION__ = "swfdec_player_do_advance"
#48 0xed2c2cd3 in swfdec_marshal_VOID__ULONG_UINT (closure=0xed5d4710, 
    return_value=0x0, n_param_values=3, param_values=0xe8df52c0, 
    invocation_hint=0xffff8b6c, marshal_data=0xed2851a0)
    at swfdec_marshal.c:330
        data1 = 0xf092b000
        data2 = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "swfdec_marshal_VOID__ULONG_UINT"
#49 0xf66b92e9 in g_type_class_meta_marshal (closure=0xed5d4710, 
    return_value=0x0, n_param_values=3, param_values=0xe8df52c0, 
    invocation_hint=0xffff8b6c, marshal_data=0x50)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gclosure.c:878
        callback = <value optimized out>
#50 0xf66bab63 in IA__g_closure_invoke (closure=0xed5d4710, return_value=0x0, 
    n_param_values=3, param_values=0xe8df52c0, invocation_hint=0xffff8b6c)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gclosure.c:767
        marshal = 0xf66b92a0 <g_type_class_meta_marshal>
        marshal_data = 0x50
        __PRETTY_FUNCTION__ = "IA__g_closure_invoke"
#51 0xf66ce837 in signal_emit_unlocked_R (node=0xed5d5c40, detail=0, 
    instance=0xf092b000, emission_return=0x0, instance_and_params=0xe8df52c0)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gsignal.c:3285
        accumulator = 0x0
        emission = {next = 0x0, instance = 0xf092b000, ihint = {
            signal_id = 245, detail = 0, run_type = G_SIGNAL_RUN_LAST}, 
          state = EMISSION_RUN, chain_type = 3982290752}
        class_closure = 0xed5d4710
---Type <return> to continue, or q <return> to quit---
        handler_list = 0xe9186680
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
              v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, 
              v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, 
              v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, 
              v_double = 0, v_pointer = 0x0}}}
        signal_id = 245
        max_sequential_handler_number = 12419
        return_value_altered = 1
#52 0xf66cffd9 in IA__g_signal_emit_valist (instance=0xf092b000, 
    signal_id=245, detail=0, var_args=0xffff8d14 "")
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gsignal.c:2980
        signal_return_type = 4
        param_values = 0xe8df52d4
        node = 0xed5d5c40
        i = 2
        n_params = 2
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#53 0xf66d0436 in IA__g_signal_emit (instance=0xf092b000, signal_id=245, 
    detail=0)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/gobject/gsignal---Type <return> to continue, or q <return> to quit---
.c:3037
No locals.
#54 0xed2802fa in swfdec_player_advance (player=0xf092b000, msecs=4)
    at swfdec_player.c:3240
        max = <value optimized out>
        __PRETTY_FUNCTION__ = "swfdec_player_advance"
#55 0xf0a2bdd4 in swfdec_iterate_dispatch (source_=0xe9175920, callback=0, 
    user_data=0x0) at swfdec_source.c:109
        diff = -77
#56 0xf66334b8 in g_main_dispatch (context=0xf7a40580)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/glib/gmain.c:1824
        __PRETTY_FUNCTION__ = "g_main_dispatch"
#57 IA__g_main_context_dispatch (context=0xf7a40580)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/glib/gmain.c:2377
No locals.
#58 0xf6636a13 in g_main_context_iterate (context=0xf7a40580, block=0, 
    dispatch=1, self=0xf7a028b0)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/glib/gmain.c:2455
        max_priority = 130
        timeout = 0
---Type <return> to continue, or q <return> to quit---
        some_ready = 1
        nfds = 9
        allocated_nfds = <value optimized out>
        fds = 0xeaf12400
        __PRETTY_FUNCTION__ = "g_main_context_iterate"
#59 0xf6636b98 in IA__g_main_context_iteration (context=0xf7a40580, 
    may_block=0)
    at /build/buildd-glib2.0_2.20.5-1-i386-mDnYKw/glib2.0-2.20.5/glib/gmain.c:2518
        retval = <value optimized out>
#60 0xf7591d50 in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#61 0xf75a60a4 in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#62 0xf75a62ad in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#63 0xf76517c6 in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#64 0xf762373c in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#65 0xf75a6384 in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so
No symbol table info available.
#66 0xf747a914 in ?? () from /usr/lib/iceweasel/xulrunner/libxul.so