A similar thing happens each time when I click Create new mail in Yahoo mail! It is very urgent. Here is the backtrace: *** buffer overflow detected ***: /usr/lib/seamonkey-2.0.13/seamonkey-2.0-bin terminated ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(__fortify_fail+0x50)[0x1f5df0] /lib/i386-linux-gnu/libc.so.6(+0xe4cca)[0x1f4cca] /lib/i386-linux-gnu/libc.so.6(__strcpy_chk+0x3f)[0x1f405f] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x1e005)[0x2ab5005] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x1e766)[0x2ab5766] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x1e8b6)[0x2ab58b6] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x1eaca)[0x2ab5aca] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0xd75c)[0x2aa475c] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x4c75)[0x2a9bc75] /usr/lib/seamonkey-2.0.13/components/libcomposer.so(+0xc7b2)[0x17dc7b2] /usr/lib/seamonkey-2.0.13/components/libcomposer.so(+0xd024)[0x17dd024] /usr/lib/seamonkey-2.0.13/components/libspellchecker.so(+0x94c7)[0x2aa04c7] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x3e0b5c)[0x1d32b5c] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x3df2ab)[0x1d312ab] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x18c6ed)[0x1ade6ed] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0xf725a)[0x1a4925a] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0xf102c)[0x1a4302c] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0xf12ab)[0x1a432ab] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0xfbd81)[0x1a4dd81] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x120a89)[0x1a72a89] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x26ba27)[0x1bbda27] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x260e8d)[0x1bb2e8d] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x260fb3)[0x1bb2fb3] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x261b18)[0x1bb3b18] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x261bc1)[0x1bb3bc1] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x256a8a)[0x1ba8a8a] /usr/lib/seamonkey-2.0.13/components/libxpconnect.so(+0x482f1)[0x2f5e2f1] /usr/lib/seamonkey-2.0.13/libmozjs.so(+0x409fa)[0x2b19fa] /usr/lib/seamonkey-2.0.13/libmozjs.so(+0x46aed)[0x2b7aed] /usr/lib/seamonkey-2.0.13/libmozjs.so(JS_EvaluateUCScriptForPrincipals+0x99)[0x281e30] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x379f6e)[0x1ccbf6e] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x278e4c)[0x1bcae4c] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x278f96)[0x1bcaf96] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x27a2d7)[0x1bcc2d7] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2781fd)[0x1bca1fd] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2e042b)[0x1c3242b] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2dfb58)[0x1c31b58] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2f9899)[0x1c4b899] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2f9aa3)[0x1c4baa3] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x2faa06)[0x1c4ca06] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x10d2b)[0x16ead2b] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x117e7)[0x16eb7e7] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x12f46)[0x16ecf46] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0xfa1e)[0x16e9a1e] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x17a46)[0x16f1a46] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x1b00f)[0x16f500f] /usr/lib/seamonkey-2.0.13/components/libhtmlpars.so(+0x1ae57)[0x16f4e57] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x22d151)[0x1b7f151] /usr/lib/seamonkey-2.0.13/components/libgklayout.so(+0x230197)[0x1b82197] /usr/lib/seamonkey-2.0.13/libxpcom_core.so(+0x58c47)[0x726c47] /usr/lib/seamonkey-2.0.13/libxpcom_core.so(_Z21NS_ProcessNextEvent_PP9nsIThreadi+0x32)[0x6f5f2a] /usr/lib/seamonkey-2.0.13/components/libwidget_gtk2.so(+0x36e03)[0x15cee03] /usr/lib/seamonkey-2.0.13/components/libtoolkitcomps.so(+0x4f7c)[0x6f98f7c] /usr/lib/seamonkey-2.0.13/libxul.so(XRE_main+0x2d2a)[0xd8dde1] /usr/lib/seamonkey-2.0.13/seamonkey-2.0-bin[0x80492e2] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x126e37] /usr/lib/seamonkey-2.0.13/seamonkey-2.0-bin[0x8049151] ======= Memory map: ======== 00110000-0026a000 r-xp 00000000 08:01 27657025 /lib/i386-linux-gnu/libc-2.13.so 0026a000-0026b000 ---p 0015a000 08:01 27657025 /lib/i386-linux-gnu/libc-2.13.so 0026b000-0026d000 r--p 0015a000 08:01 27657025 /lib/i386-linux-gnu/libc-2.13.so 0026d000-0026e000 rw-p 0015c000 08:01 27657025 /lib/i386-linux-gnu/libc-2.13.so 0026e000-00271000 rw-p 00000000 00:00 0 00271000-0032f000 r-xp 00000000 08:01 15338604 /usr/lib/seamonkey-2.0.13/libmozjs.so 0032f000-00331000 r--p 000be000 08:01 15338604 /usr/lib/seamonkey-2.0.13/libmozjs.so 00331000-00335000 rw-p 000c0000 08:01 15338604 /usr/lib/seamonkey-2.0.13/libmozjs.so 00335000-00336000 rw-p 00000000 00:00 0 00336000-0044c000 r-xp 00000000 08:01 13768931 /usr/lib/i386-linux-gnu/libX11.so.6.3.0 0044c000-0044d000 ---p 00116000 08:01 13768931 /usr/lib/i386-linux-gnu/libX11.so.6.3.0 0044d000-0044e000 r--p 00116000 08:01 13768931 /usr/lib/i386-linux-gnu/libX11.so.6.3.0 0044e000-00450000 rw-p 00117000 08:01 13768931 /usr/lib/i386-linux-gnu/libX11.so.6.3.0 00450000-00451000 rw-p 00000000 00:00 0 00451000-00453000 r-xp 00000000 08:01 13766844 /usr/lib/libplds4.so 00453000-00454000 r--p 00001000 08:01 13766844 /usr/lib/libplds4.so 00454000-00455000 rw-p 00002000 08:01 13766844 /usr/lib/libplds4.so 00455000-00457000 r-xp 00000000 08:01 27657035 /lib/i386-linux-gnu/libdl-2.13.so 00457000-00458000 r--p 00001000 08:01 27657035 /lib/i386-linux-gnu/libdl-2.13.so 00458000-00459000 rw-p 00002000 08:01 27657035 /lib/i386-linux-gnu/libdl-2.13.so 00459000-00460000 r-xp 00000000 08:01 27657094 /lib/i386-linux-gnu/librt-2.13.so 00460000-00461000 r--p 00006000 08:01 27657094 /lib/i386-linux-gnu/librt-2.13.so 00461000-00462000 rw-p 00007000 08:01 27657094 /lib/i386-linux-gnu/librt-2.13.so 00462000-0046c000 r-xp 00000000 08:01 13769044 /usr/lib/i386-linux-gnu/libpangocairo-1.0.so.0.2800.4 0046c000-0046d000 r--p 00009000 08:01 13769044 /usr/lib/i386-linux-gnu/libpangocairo-1.0.so.0.2800.4 0046d000-0046e000 rw-p 0000a000 08:01 13769044 /usr/lib/i386-linux-gnu/libpangocairo-1.0.so.0.2800.4 0046e000-0046f000 rwxp 00000000 00:00 0 0046f000-00470000 r-xp 00000000 00:00 0 [vdso] 00470000-00487000 r-xp 00000000 08:01 13769081 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 00487000-00488000 r--p 00016000 08:01 13769081 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 00488000-00489000 rw-p 00017000 08:01 13769081 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 00489000-0048b000 r-xp 00000000 08:01 13768935 /usr/lib/i386-linux-gnu/libXcomposite.so.1.0.0 0048b000-0048c000 r--p 00001000 08:01 13768935 /usr/lib/i386-linux-gnu/libXcomposite.so.1.0.0Aborted