With the release of Vivaldi 2.2, this page is now obsolete and unmaintained. Widevine is fetched automatically on post install of our official packages. The information below and the script are left for historical reasons but will not be updated.
If you are using something newer than Vivaldi 2.2, you should not be using this script as there is simply no need. Any need you think you have for it would be a bug IMHO and thus should be logged in a bug report. Before you do so however, you should also checkout the Vivaldi help page on Widevine, on Linux
A bunch of people asked how they could use this script with pure Chromium on Ubuntu. The following is a quick guide. Though I still suggest you at least try Vivaldi. Who knows, you might like it. Worried about proprietary componants? Remember that libwidevinecdm.so is a binary blob you are taking from Chrome, so by following this guide you will have already made your distro less "pure". Also all our additions to the Chromium base are open source and our UI, while not open, is written in HTML/CSS/JS. Thus you can see exactly what we are doing (no funny business).
If you still want to run Chromium, the following explains how it is done.
Note: For ARM(hf) use this instead. Beware it requires a +2Gb download of a ChromeOS recovery image. You can actually run it on a “regular” (x86 or x86_64 Linux) PC as it will create an archive file that can be copied to the target machine.
Install the package "chromium-codecs-ffmpeg-extra" to provide H.264/MP4 support (used by videos on Netflix)—replaced with a snap in Ubuntu 19.10 onwards. After install, you need to restart Chromium. You can confirm that it is installed and working correctly by going to https://help.vivaldi.com/article/html5-proprietary-media-on-linux/ and checking that the video plays.
Next run the script (
latest-widevine.sh). This will create the file "WidevineCdm" in "/opt/google/chrome".
Replace the "WidevineCdm" provided by Chromium with a symlink to the file from Chrome:
sudo rm -fr /usr/lib/chromium-browser/WidevineCdm sudo ln -fs /opt/google/chrome/WidevineCdm /usr/lib/chromium-browser/WidevineCdm
Note: The path is typically "/usr/lib64/chromium/WidevineCdm" on non Debian/Ubuntu based distros.
You can confirm that DRM'd H.264/MP4 content is now playable by going to http://demo.castlabs.com/ and trying some of the demos.
Damn you Netflix!
The final complication is that Netflix does not expect pure Chromium to be able to be able play videos and hence they do a stupid thing. If they detect that Chromium is accesing a video, they point you to install Silverlight! This is particularly dumb because: you are running Linux (no Silverlight); Silverlight is an NPAPI plugin and Chrom(e|ium) only supports PPAPI. You will need to work around this.
Delete any cookies or data associated with Netflix. If you have failed to play videos once, then Netflix stores information about this in a cookie and you won't be able to play vidoes, even once your system is now correctly configured. Another "WTF‽" moment from the Netflix team.
Via a user agent editing extention or by starting Chromium with the
-user-agentswitch, remove the reference to "Ubuntu Chromium/XX.0.XXXX.XX", e.g.
/usr/lib/chromium-browser/chromium-browser --user-agent='Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.99 Safari/537.36'
Note: An extenstion is best otherwise you will need to start Chromium from the command line every time or edit the .desktop file to include this switch.
One final point. Every time Chromium upgrades it will replace the WidevineCdm symlink with its own file. Thus you will need to remove it and re-create the symlink. I would also suggest re-running
latest-widevine.sh at that point, to check for new versions and upgrade if needed.