This also affects us. It started on Sep 22 on part of our test servers as soon as chromium-browser upgraded to 61 from 60. What I have found so far: Chromium 60 uses libraries from its folder: --------------------- ubuntu@test4:~$ sudo apt-cache policy chromium-browser chromium-browser: Installed: 60.0.3112.113-0ubuntu0.16.04.1298 Candidate: 61.0.3163.79-0ubuntu0.16.04.1300 Version table: 61.0.3163.79-0ubuntu0.16.04.1300 500 500 http://mirror.hetzner.de/ubuntu/packages xenial-updates/universe amd64 Packages 500 http://mirror.hetzner.de/ubuntu/security xenial-security/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages 500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages *** 60.0.3112.113-0ubuntu0.16.04.1298 100 100 /var/lib/dpkg/status 49.0.2623.108-0ubuntu1.1233 500 500 http://mirror.hetzner.de/ubuntu/packages xenial/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages ----------------------- ubuntu@test4:~$ ldd /usr/lib/chromium-browser/chromium-browser linux-vdso.so.1 => (0x00007ffd2a9cd000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3431380000) libembedder.so => /usr/lib/chromium-browser/./libembedder.so (0x00007f343113c000) libbindings.so => /usr/lib/chromium-browser/./libbindings.so (0x00007f3430f0b000) libbase.so => /usr/lib/chromium-browser/./libbase.so (0x00007f3430b45000) libmojo_public_system_cpp.so => /usr/lib/chromium-browser/./libmojo_public_system_cpp.so (0x00007f343093b000) libmojo_public_system.so => /usr/lib/chromium-browser/./libmojo_public_system.so (0x00007f3430737000) libnet.so => /usr/lib/chromium-browser/./libnet.so (0x00007f342ff02000) libprotobuf_lite.so => /usr/lib/chromium-browser/./libprotobuf_lite.so (0x00007f342fcc8000) libcrcrypto.so => /usr/lib/chromium-browser/./libcrcrypto.so (0x00007f342fab2000) libboringssl.so => /usr/lib/chromium-browser/./libboringssl.so (0x00007f342f72f000) liburl.so => /usr/lib/chromium-browser/./liburl.so (0x00007f342f50a000) libbase_i18n.so => /usr/lib/chromium-browser/./libbase_i18n.so (0x00007f342f2b1000) libicui18n.so => /usr/lib/chromium-browser/./libicui18n.so (0x00007f342ee72000) libicuuc.so => /usr/lib/chromium-browser/./libicuuc.so (0x00007f342eae2000) libipc.so => /usr/lib/chromium-browser/./libipc.so (0x00007f342e8ae000) libgeometry.so => /usr/lib/chromium-browser/./libgeometry.so (0x00007f342e6a0000) libgfx.so => /usr/lib/chromium-browser/./libgfx.so (0x00007f342e39d000) libcolor_space.so => /usr/lib/chromium-browser/./libcolor_space.so (0x00007f342e190000) --------------------------------- ubuntu@test4:~$ ldd /usr/lib/chromium-browser/chromium-browser | grep ffmpe libffmpeg.so => /usr/lib/chromium-browser/./libffmpeg.so (0x00007f92a0f09000) ==================================================== But Chromium 61 uses all libraries from system location: ---------------------------------------------------- ubuntu@Ubuntu-1604-xenial-64-minimal:/usr/lib/chromium-browser$ apt-cache policy chromium-browser chromium-browser: Installed: 61.0.3163.79-0ubuntu0.16.04.1300 Candidate: 61.0.3163.79-0ubuntu0.16.04.1300 Version table: *** 61.0.3163.79-0ubuntu0.16.04.1300 500 500 http://mirror.hetzner.de/ubuntu/packages xenial-updates/universe amd64 Packages 500 http://mirror.hetzner.de/ubuntu/security xenial-security/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages 500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages 500 http://ppa.launchpad.net/canonical-chromium-builds/stage/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status 49.0.2623.108-0ubuntu1.1233 500 500 http://mirror.hetzner.de/ubuntu/packages xenial/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages -------------------------------------------------- ubuntu@Ubuntu-1604-xenial-64-minimal:~$ ldd /usr/lib/chromium-browser/chromium-browser linux-vdso.so.1 => (0x00007ffc7258b000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fc7aefff000) libffmpeg.so => not found libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc7aec34000) /lib64/ld-linux-x86-64.so.2 (0x00005569fd2e6000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fc7ae92b000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fc7ae715000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fc7ae510000) libpangocairo-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007fc7ae303000) libpango-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007fc7ae0b7000) libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007fc7ade63000) libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007fc7adb52000) libcairo.so.2 => /usr/lib/x86_64-linux-gnu/libcairo.so.2 (0x00007fc7ad83e000) libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fc7ad503000) libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007fc7ad301000) libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fc7ad0df000) libXcomposite.so.1 => /usr/lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007fc7acedb000) libXcursor.so.1 => /usr/lib/x86_64-linux-gnu/libXcursor.so.1 (0x00007fc7accd1000) libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007fc7acace000) ------------------------------------ ubuntu@Ubuntu-1604-xenial-64-minimal:~$ ldd /usr/lib/chromium-browser/chromium-browser | grep ffmpe libffmpeg.so => not found ============================================= But there is still such file in chromium folder: ----------------------------------------------- ubuntu@Ubuntu-1604-xenial-64-minimal:~$ ls -la /usr/lib/chromium-browser/./libffmpeg.so -rw-r--r-- 1 root root 3013432 Sep 12 13:45 /usr/lib/chromium-browser/./libffmpeg.so ----------------------------------------------- And when I copy this file to system location, everything works, so it is not the wrong version of libffmpeg.so: ----------------------------------------------- ubuntu@Ubuntu-1604-xenial-64-minimal:~$ sudo cp /usr/lib/chromium-browser/./libffmpeg.so /lib/x86_64-linux-gnu/ ubuntu@Ubuntu-1604-xenial-64-minimal:~$ ldd /usr/lib/chromium-browser/chromium-browser | grep ffmpe libffmpeg.so => /lib/x86_64-linux-gnu/libffmpeg.so (0x00007f123ac13000) ----------------------------------------------- My bet is that something is broken with LD_LIBRARY_PATH or something like that.