UserAgent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0

Steps to reproduce the problem:
1. start chromium-browser
2. it crashes

What is the expected behavior?
browser starts and is usable :)

What went wrong?
everything?

(probably ubuntu package maintainers packaged version where the profile can't get migrated to the new version?)

Crashed report ID: no

How much crashed? Whole browser

Is it a problem with a plugin? N/A 

Did this work before? Yes 58.0.3029.110-0ubuntu0.16.04.1281

Chrome version: 59.0.3071.109  Channel: stable
OS Version: 
Flash Version: 

The problem is only reproducible with my user profile. A clean install with guest account works.

davidak@unibook:~$ chromium-browser 
Received signal 11 SEGV_MAPERR 000000000010
#0 0x7fd95b3ff425 base::debug::StackTrace::StackTrace()
#1 0x7fd95b3ff80b <unknown>
#2 0x7fd95b72a390 <unknown>
#3 0x55d088334dc8 <unknown>
#4 0x55d088337656 <unknown>
#5 0x55d088337df9 <unknown>
#6 0x55d088338143 <unknown>
#7 0x7fd95b47a821 <unknown>
#8 0x7fd95b400eea base::debug::TaskAnnotator::RunTask()
#9 0x7fd95b429e90 base::MessageLoop::RunTask()
#10 0x7fd95b42b97d base::MessageLoop::DeferOrRunPendingTask()
#11 0x7fd95b42c83d <unknown>
#12 0x7fd95b42d300 base::MessagePumpLibevent::Run()
#13 0x7fd95b428f15 base::MessageLoop::RunHandler()
#14 0x7fd95b453628 base::RunLoop::Run()
#15 0x7fd95b47fe36 base::Thread::ThreadMain()
#16 0x7fd95b47a726 <unknown>
#17 0x7fd95b7206ba start_thread
#18 0x7fd944dcf3dd clone
  r8: 000000000000002e  r9: 000055d089d8b6ec r10: 0000000000000000 r11: 00007fd944e5cf50
 r12: 00007fd8ad0c4ff0 r13: 0000000000000008 r14: 0000000000000008 r15: 00007fd8ad0c4eb0
  di: 0000000000000000  si: 00007fd8ad0c4eb0  bp: 00007fd8ad0c4f00  bx: 00007fd8ad0c4eb0
  dx: 0000000000000061  ax: 0000000000000000  cx: 000055d08d371430  sp: 00007fd8ad0c4e60
  ip: 000055d088334dc8 efl: 0000000000010206 cgf: 002b000000000033 erf: 0000000000000004
 trp: 000000000000000e msk: 0000000000000000 cr2: 0000000000000010
[end of stack trace]
Calling _exit(1). Core file will not be generated.

(gdb) backtrace
#0  0x0000555555cd4dc8 in ?? ()
#1  0x0000555555cd7656 in ?? ()
#2  0x0000555555cd7df9 in ?? ()
#3  0x0000555555cd8143 in ?? ()
#4  0x00007ffff791b821 in ?? () from /usr/lib/chromium-browser/./libbase.so
#5  0x00007ffff78a1eea in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) () from /usr/lib/chromium-browser/./libbase.so
#6  0x00007ffff78cae90 in base::MessageLoop::RunTask(base::PendingTask*) () from /usr/lib/chromium-browser/./libbase.so
#7  0x00007ffff78cc97d in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) () from /usr/lib/chromium-browser/./libbase.so
#8  0x00007ffff78cd83d in ?? () from /usr/lib/chromium-browser/./libbase.so
#9  0x00007ffff78ce300 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/chromium-browser/./libbase.so
#10 0x00007ffff78c9f15 in base::MessageLoop::RunHandler() () from /usr/lib/chromium-browser/./libbase.so
#11 0x00007ffff78f4628 in base::RunLoop::Run() () from /usr/lib/chromium-browser/./libbase.so
#12 0x00007ffff7920e36 in base::Thread::ThreadMain() () from /usr/lib/chromium-browser/./libbase.so
#13 0x00007ffff791b726 in ?? () from /usr/lib/chromium-browser/./libbase.so
#14 0x00007ffff7bc16ba in start_thread (arg=0x7fff49e8b700) at pthread_create.c:333
#15 0x00007fffe12703dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109