Hi, Arch now has a script to install the plugin correctly for chromium (extract it first from the chrome binaries and then copying it to the correct place):
https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=chromium-widevine Maybe this thing here is also important for the chromium maintainers: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1371274