webbrowser-app crashed on start with segfault

webbrowser-app is unable to start from inside unity8-mir session.
dmesg shows segfault:
[ 1225.736666] webbrowser-app[5974]: segfault at 0 ip 00007fc0e6a93bc0 sp 00007fffd13e0dc0 error 4 in libEGL.so.1.0.0[7fc0e6a7b000+23000]

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: webbrowser-app 0.23+14.04.20140416-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
Date: Tue Apr 22 15:32:19 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-01-13 (98 days ago)
InstallationMedia:

SourcePackage: webbrowser-app
SystemImageInfo: Error: [Errno 2] Нет такого файла или каталога: 'system-image-cli'
UpgradeStatus: Upgraded to trusty on 2014-04-21 (1 days ago)