Description of problem:

Firefox crashes a lot when running this game.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208150320 (LWP 19208)]
0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x0189859a in JSJ_HashTableAdd (ht=0x8cdceb0, key=0x929a9f4,
value=0x96545f8, arg=0x95d5278)
    at jsj_hash.c:278
#2  0x0189646d in jsj_GetJavaClassDescriptor (cx=0x94a8898, jEnv=0x95d5278,
java_class=0xb4c30f08)
    at jsj_class.c:397
#3  0x018952c5 in jsj_WrapJavaObject (cx=0x94a8898, jEnv=0x95d5278,
java_obj=0xb4c30f0c,
    java_class=0xb4c30f08) at jsj_JavaObject.c:190
#4  0x018967db in jsj_ConvertJavaObjectToJSValue (cx=0x94a8898, jEnv=0x95d5278,
java_obj=0xb4c30f0c,
    vp=0xbffbb688) at jsj_convert.c:804
#5  0x018968b6 in jsj_ConvertJavaValueToJSValue (cx=0x94a8898, jEnv=0x95d5278,
signature=0x962cec0,
    java_value=0xbffbb5b8, vp=0xbffbb688) at jsj_convert.c:878
#6  0x018994f8 in invoke_overloaded_java_method (cx=0x94a8898, jsj_env=Variable
"jsj_env" is not available.
) at jsj_method.c:1517
#7  0x018996a2 in jsj_JavaInstanceMethodWrapper (cx=0x94a8898, obj=0x8ebc418,
argc=0,
    argv=0x980260c, vp=0xbffbb688) at jsj_method.c:1813
#8  0x002c9f7d in js_Invoke (cx=0x94a8898, argc=0, flags=0) at jsinterp.c:1177
#9  0x002c4d77 in js_Interpret (cx=0x94a8898, pc=0x9863592 ":",
result=0xbffbb924) at jsinterp.c:3561
#10 0x002c9894 in js_Execute (cx=0x94a8898, chain=0x8ddf658, script=0x98232e0,
down=0x0, flags=0,
    result=0xbffbba00) at jsinterp.c:1423
#11 0x0029b462 in JS_EvaluateUCScriptForPrincipals (cx=0x94a8898, obj=0x8ddf658,
    principals=0x94d8bbc, chars=0x95f5f00, length=11,
    filename=0x98221c0
"http://nl10.runescape.com/rs2.cgi?lowmem=0&plugin=0&affiliate=runescape",
    lineno=80, rval=0xbffbba00) at jsapi.c:4116
#12 0x014c1624 in nsJSContext::EvaluateString (this=0x94a87e8, aScript=@0xbffbbad8,
    aScopeObject=0x8ddf658, aPrincipal=0x94d8bb8,
    aURL=0x98221c0
"http://nl10.runescape.com/rs2.cgi?lowmem=0&plugin=0&affiliate=runescape",
    aLineNo=80, aVersion=0x303775 "default", aRetValue=0x0, aIsUndefined=0xbffbbaec)
    at nsJSEnvironment.cpp:1061
#13 0x014c755d in nsGlobalWindow::RunTimeout (this=0x9b33c28, aTimeout=0x9818420)
    at nsGlobalWindow.cpp:6346
---Type <return> to continue, or q <return> to quit---
#14 0x014d515c in nsGlobalWindow::TimerCallback (aTimer=0x9821430,
aClosure=0x9818420)
    at nsGlobalWindow.cpp:6720
#15 0x00176a5c in nsTimerImpl::Fire (this=0x9821430) at nsTimerImpl.cpp:394
#16 0x00176b10 in handleTimerEvent (event=0xb2a00470) at nsTimerImpl.cpp:459
#17 0x0017300a in PL_HandleEvent (self=0xb2a00470) at plevent.c:688
#18 0x00173247 in PL_ProcessPendingEvents (self=0x8bb0000) at plevent.c:623
#19 0x001747de in nsEventQueueImpl::ProcessPendingEvents (this=0x8baffb8) at
nsEventQueue.cpp:417
#20 0x00f19c30 in event_processor_callback (source=0x8df84e0, condition=G_IO_IN,
data=0x8baffb8)
    at nsAppShell.cpp:67
#21 0x00788bed in g_io_unix_dispatch (source=0x8df8538,
    callback=0xf19c20 <event_processor_callback>, user_data=0x8baffb8) at
giounix.c:162
#22 0x0076011d in IA__g_main_context_dispatch (context=0x8b698e0) at gmain.c:1916
#23 0x007633af in g_main_context_iterate (context=0x8b698e0, block=1,
dispatch=1, self=0x8c60b18)
    at gmain.c:2547
#24 0x00763759 in IA__g_main_loop_run (loop=0x8df85b0) at gmain.c:2751
#25 0x0044b654 in IA__gtk_main () at gtkmain.c:1003
#26 0x00f19fc8 in nsAppShell::Run (this=0x8c824d0) at nsAppShell.cpp:139
#27 0x01cf541e in nsAppStartup::Run (this=0x8c82490) at nsAppStartup.cpp:150
#28 0x0804f40f in XRE_main (argc=1, argv=0xbffbc1e4, aAppData=0x8063420) at
nsAppRunner.cpp:2351
#29 0x0804af75 in main (argc=1, argv=0xbffbc1e4) at nsBrowserApp.cpp:61
#30 0x00bfe824 in __libc_start_main (main=0x804af54 <main>, argc=1,
ubp_av=0xbffbc1e4,
    init=0x8058584 <__libc_csu_init>, fini=0x805857c <__libc_csu_fini>,
    rtld_fini=0xbd9f00 <_dl_fini>, stack_end=0xbffbc1dc) at libc-start.c:231
#31 0x0804aed1 in _start ()

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info: