Steam крах on startup

Steam used to work perfectly умер but today when I went to go run it, it would похвалите up the "updating" бар then close and nothing would happen. I tried многообразный укради with не avail.

I tried running steam in the конечный and get

user@Alkarin-Desktop:~$ steam Running Steam on ubuntu 14.04 64-bit
STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1444853545) Installing breakpad
exception handler for appid(steam)/version(1444853545) Installing breakpad exception handler for appid(steam)/version(1444853545)
Gtk-Message: Failed to load module "overlay-scrollbar" Gtk-Message:
Failed to load module "unity-gtk-module" Installing breakpad exception handler for appid(steam)/version(1444853545) Fontconfig error:
"/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig error:
"/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig warning:
"/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number [1103/145730:ERROR:main_delegate.cc(751)] Could not load cef_extensions.pak [1103/145730:ERROR:browser_main_loop.cc(189)]
Running without the SUID sandbox! See https://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment for more information on developing with the sandbox on. 
Installing breakpad exception handler for appid(steamwebhelper)/version(20151014123328)     
Installing breakpad exception handler for appid(steamwebhelper)/version(1444826008) 1103/145730:ERROR:main_delegate.cc(751)] Could not load cef_extensions.pak [1103/145730:ERROR:nss_util.cc(1007)] Failed to load NSS libraries.     
Illegal instruction (core dumped) Installing breakpad exception handler for appid(steam)/version(1444853545)
Installing breakpad exception handler for appid(steam)/version(1444853545) 
Installing breakpad exception handler for appid(steam)/version(1444853545) 
Installing breakpad exception handler for appid(steam)/version(1444853545) 
Installing breakpad exception handler for appid(steam)/version(1444853545) 
Installing breakpad exception handler for appid(steam)/version(1444853545)

Wireless receiver firmware
/home/user/.local/share/Steam/ubuntu12_32/../controller_base/d0ggle.bin
loaded, version 1442256398. Installing breakpad exception handler for
appid(steam)/version(1444853545) Installing breakpad exception handler
for appid(steam)/version(1444853545) FillInMachineIDInfo took a total
of 0 milliseconds assert_20151103145729_1.dmp[4456]: Uploading dump
(out-of-process) /tmp/dumps/assert_20151103145729_1.dmp
assert_20151103145729_1.dmp[4456]: Finished uploading minidump
(out-of-process): success = no assert_20151103145729_1.dmp[4456]:
error: libcurl.so: cannot open shared object file: No such file or
directory assert_20151103145729_1.dmp[4456]: file
''/tmp/dumps/assert_20151103145729_1.dmp'', upload no: ''libcurl.so:
cannot open shared object file: No such file or directory''
/home/user/.local/share/Steam/steam.sh: line 756:  4415 Illegal
instruction     (core dumped) $STEAM_DEBUGGER
"$STEAMROOT/$STEAMEXEPATH" "$@" user@Alkarin-Desktop:~$

гve tried reinstalling my nvidia драйверы and rebooting, uninstalling and reinstalling steam, and installing intel graphics драйверы for linux. Still the same issue. гve also now reinstalled curl and the steam launcher and still the same issue.

Any ты разрабатываешь?