The uzbl instance in uzbl-tabbed is crashed while loading java applet:
Detecting applet environment ...
Java version : 1.7.0_03
Java vendor : Oracle Corporation
Java vendor url : http://java.oracle.com/
Java class version : 51.0
OS NAME : Linux
OS Arch : amd64
OS Version : 3.2.0-26-generic
Sending environment info to server
*** glibc detected *** uzbl-core: double free or corruption (out): 0x0000000001201a30 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x7e626)[0x7f4e66b77626]
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so(_Z12ITNP_DestroyP4_NPPPP12_NPSavedData+0xde)[0x7f4e09e21b1e]
/usr/lib/libwebkitgtk-1.0.so.0(+0xa8ab21)[0x7f4e69740b21]
/usr/lib/libwebkitgtk-1.0.so.0(+0xa8cc8e)[0x7f4e69742c8e]
/usr/lib/libwebkitgtk-1.0.so.0(+0xa8d379)[0x7f4e69743379]
/usr/lib/libwebkitgtk-1.0.so.0(+0xb956f0)[0x7f4e6984b6f0]
/usr/lib/libwebkitgtk-1.0.so.0(+0xb94cfd)[0x7f4e6984acfd]
/usr/lib/libwebkitgtk-1.0.so.0(+0x60ab94)[0x7f4e692c0b94]
/usr/lib/libwebkitgtk-1.0.so.0(+0x6280e7)[0x7f4e692de0e7]
/usr/lib/libwebkitgtk-1.0.so.0(+0x979614)[0x7f4e6962f614]
/usr/lib/libwebkitgtk-1.0.so.0(+0x97b790)[0x7f4e69631790]
/usr/lib/libwebkitgtk-1.0.so.0(+0x3ae63a)[0x7f4e6906463a]
/usr/lib/libwebkitgtk-1.0.so.0(+0x8ec855)[0x7f4e695a2855]
/usr/lib/libwebkitgtk-1.0.so.0(+0x8ef878)[0x7f4e695a5878]
/usr/lib/libwebkitgtk-1.0.so.0(+0x8d8f6a)[0x7f4e6958ef6a]
/usr/lib/libwebkitgtk-1.0.so.0(+0x9209f8)[0x7f4e695d69f8]
/usr/lib/libwebkitgtk-1.0.so.0(+0x90c015)[0x7f4e695c2015]
/usr/lib/libwebkitgtk-1.0.so.0(+0x91feae)[0x7f4e695d5eae]
/usr/lib/libwebkitgtk-1.0.so.0(+0xa48c9a)[0x7f4e696fec9a]
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(+0x5a949)[0x7f4e646e5949]
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(g_simple_async_result_complete+0x87)[0x7f4e646f7f97]
/usr/lib/x86_64-linux-gnu/libsoup-2.4.so.1(+0x316cd)[0x7f4e6797c6cd]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_cclosure_marshal_VOID__BOXEDv+0x127)[0x7f4e6770f067]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0xfeca)[0x7f4e6770beca]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0x421)[0x7f4e67724741]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x82)[0x7f4e67725242]
/usr/lib/x86_64-linux-gnu/libsoup-2.4.so.1(+0x38306)[0x7f4e67983306]
/usr/lib/x86_64-linux-gnu/libsoup-2.4.so.1(+0x38c84)[0x7f4e67983c84]
/usr/lib/x86_64-linux-gnu/libsoup-2.4.so.1(+0x39b28)[0x7f4e67984b28]
/usr/lib/x86_64-linux-gnu/libsoup-2.4.so.1(+0x39e94)[0x7f4e67984e94]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x133)[0x7f4e6744ed53]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x480a0)[0x7f4e6744f0a0]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0x6a)[0x7f4e6744f49a]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(gtk_main+0xa7)[0x7f4e687b02f7]
uzbl-core[0x407012]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f4e66b1a76d]
uzbl-core[0x407229]
======= Memory map: ========
00400000-00417000 r-xp 00000000 00:10 622018 /usr/bin/uzbl-core
00616000-00617000 r--p 00016000 00:10 622018 /usr/bin/uzbl-core
00617000-00618000 rw-p 00017000 00:10 622018 /usr/bin/uzbl-core
00618000-00619000 rw-p 00000000 00:00 0
00e81000-01470000 rw-p 00000000 00:00 0 [heap]
7f4dc7ff8000-7f4dc7ff9000 ---p 00000000 00:00 0
7f4dc7ff9000-7f4dc87f9000 rw-p 00000000 00:00 0
7f4dc87f9000-7f4dc87fa000 ---p 00000000 00:00 0
7f4dc87fa000-7f4dc8ffa000 rw-p 00000000 00:00 0
7f4dc8ffa000-7f4dc8ffb000 ---p 00000000 00:00 0
7f4dc8ffb000-7f4dc97fb000 rw-p 00000000 00:00 0
7f4dcaffe000-7f4dcafff000 ---p 00000000 00:00 0
7f4dcafff000-7f4dcb7ff000 rw-p 00000000 00:00 0
7f4dcc000000-7f4dcc022000 rw-p 00000000 00:00 0
7f4dcc022000-7f4dd0000000 ---p 00000000 00:00 0
7f4dd0000000-7f4dd0022000 rw-p 00000000 00:00 0
7f4dd0022000-7f4dd4000000 ---p 00000000 00:00 0
7f4dd4000000-7f4dd4022000 rw-p 00000000 00:00 0
7f4dd4022000-7f4dd8000000 ---p 00000000 00:00 0
7f4dd8000000-7f4dd8022000 rw-p 00000000 00:00 0
7f4dd8022000-7f4ddc000000 ---p 00000000 00:00 0
7f4ddc227000-7f4ddc259000 r-xp 00000000 00:10 19152 /usr/lib/x86_64-linux-gnu/libidn.so.11.6.6
7f4ddc259000-7f4ddc458000 ---p 00032000 00:10 19152 /usr/lib/x86_64-linux-gnu/libidn.so.11.6.6
7f4ddc458000-7f4ddc459000 r--p 00031000 00:10 19152 /usr/lib/x86_64-linux-gnu/libidn.so.11.6.6
7f4ddc459000-7f4ddc45a000 rw-p 00032000 00:10 19152 /usr/lib/x86_64-linux-gnu/libidn.so.11.6.6
7f4ddc45a000-7f4ddc4b4000 r-xp 00000000 00:10 145762 /usr/lib/x86_64-linux-gnu/libcurl.so.4.2.0
7f4ddc4b4000-7f4ddc6b4000 ---p 0005a000 00:10 145762 /usr/lib/x86_64-linux-gnu/libcurl.so.4.2.0
7f4ddc6b4000-7f4ddc6b6000 r--p 0005a000 00:10 145762 /usr/lib/x86_64-linux-gnu/libcurl.so.4.2.0
7f4ddc6b6000-7f4ddc6b7000 rw-p 0005c000 00:10 145762 /usr/lib/x86_64-linux-gnu/libcurl.so.4.2.0
7f4ddc6da000-7f4ddc6f9000 rw-p 00000000 00:00 0
7f4ddc6f9000-7f4ddc7f9000 rw-p 00000000 00:00 0
7f4de0000000-7f4de0022000 rw-p 00000000 00:00 0
7f4de0022000-7f4de4000000 ---p 00000000 00:00 0
7f4de4000000-7f4de4022000 rw-p 00000000 00:00 0
7f4de4022000-7f4de8000000 ---p 00000000 00:00 0
7f4de8000000-7f4de8022000 rw-p 00000000 00:00 0
7f4de8022000-7f4dec000000 ---p 00000000 00:00 0
7f4dec000000-7f4dec022000 rw-p 00000000 00:00 0
7f4dec022000-7f4df0000000 ---p 00000000 00:00 0
7f4df0000000-7f4df0022000 rw-p 00000000 00:00 0
7f4df0022000-7f4df4000000 ---p 00000000 00:00 0
7f4df4000000-7f4df4022000 rw-p 00000000 00:00 0
7f4df4022000-7f4df8000000 ---p 00000000 00:00 0
7f4df8000000-7f4df8022000 rw-p 00000000 00:00 0
7f4df8022000-7f4dfc000000 ---p 00000000 00:00 0
7f4dfc009000-7f4dfc028000 rw-p 00000000 00:00 0
7f4dfc028000-7f4dfc030000 rw-p 00000000 00:00 0
7f4dfc08d000-7f4dfc18d000 rw-p 00000000 00:00 0
7f4dfc18d000-7f4dfc1ac000 rw-p 00000000 00:00 0
7f4dfc1ac000-7f4dfc1df000 r--p 00000000 00:10 170224 /usr/share/fonts/truetype/msttcorefonts/Arial_Italic.ttf
7f4dfc1df000-7f4dfc225000 r--p 00000000 00:10 170225 /usr/share/fonts/truetype/msttcorefonts/Arial_Bold.ttf
7f4dfc2a1000-7f4dfc4a1000 rw-p 00000000 00:00 0
7f4dfc4a1000-7f4dfc4c0000 rw-p 00000000 00:00 0
7f4dfc4c0000-7f4dfc5c0000 rw-p 00000000 00:00 0
7f4dfc783000-7f4dfc784000 r--p 00000000 00:10 615269 /usr/share/locale-langpack/ru/LC_MESSAGES/libgnutls.mo
7f4dfc7a3000-7f4dfc8a3000 rw-p 00000000 00:00 0
7f4dfc8a3000-7f4dfc8c2000 rw-p 00000000 00:00 0
7f4dfc8c2000-7f4dfc9c2000 rw-p 00000000 00:00 0
7f4dfc9e1000-7f4dfd338000 rw-p 00000000 00:00 0
7f4dfd338000-7f4dfd395000 r-xp 00000000 00:10 20143 /usr/lib/x86_64-linux-gnu/nss/libfreebl3.so
7f4dfd395000-7f4dfd594000 ---p 0005d000 00:10 20143 /usr/lib/x86_64-linux-gnu/nss/libfreebl3.so
7f4dfd594000-7f4dfd596000 r--p 0005c000 00:10 20143 /usr/lib/x86_64-linux-gnu/nss/libfreebl3.so
7f4dfd596000-7f4dfd597000 rw-p 0005e000 00:10 20143 /usr/lib/x86_64-linux-gnu/nss/libfreebl3.so
7f4dfd597000-7f4dfd59b000 rw-p 00000000 00:00 0
https:/
The applet in question is online-banking applet so it's extremely important.
Note: works just fine in chromium which is webkit based too.