Comment 6 for bug 1887970

I found the deb packages, and ddeb for 83.x but couldn't get them to run.
It's a shame Ubuntu has switched to SNAP.

https://packages.ubuntu.com/bionic/amd64/chromium-browser/download

the link is rather strange, it shows "security.ubuntu.com/ubuntu" can you ask them to change that to be something more relevant to the deb download?

# dpkg -i 'chromium-browser_83.0.4103.61-0ubuntu0.18.04.1_amd64 (1).deb'
dpkg: warning: downgrading chromium-browser from 83.0.4103.97-0ubuntu0.20.04.1 to 83.0.4103.61-0ubuntu0.18.04.1
(Reading database ... 323708 files and directories currently installed.)
Preparing to unpack chromium-browser_83.0.4103.61-0ubuntu0.18.04.1_amd64 (1).deb ...
Unpacking chromium-browser (83.0.4103.61-0ubuntu0.18.04.1) over (83.0.4103.97-0ubuntu0.20.04.1) ...
dpkg: dependency problems prevent configuration of chromium-browser:
 chromium-browser depends on chromium-codecs-ffmpeg-extra (= 83.0.4103.61-0ubuntu0.18.04.1) | chromium-codecs-ffmpeg (= 83.0.4103.61-0ubuntu0.18.04.1); however:
  Package chromium-codecs-ffmpeg-extra is not installed.
  Version of chromium-codecs-ffmpeg on system is 83.0.4103.97-0ubuntu0.20.04.1.

dpkg: error processing package chromium-browser (--install):
 dependency problems - leaving unconfigured
Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu2) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for man-db (2.9.1-1) ...
Errors were encountered while processing:
 chromium-browser

# apt-get install chromium-codecs-ffmpeg-extra
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies.
 chromium-browser : Depends: chromium-codecs-ffmpeg-extra (= 83.0.4103.61-0ubuntu0.18.04.1) but 83.0.4103.97-0ubuntu0.20.04.1 is to be installed or
                             chromium-codecs-ffmpeg (= 83.0.4103.61-0ubuntu0.18.04.1) but 83.0.4103.97-0ubuntu0.20.04.1 is to be installed
                    Recommends: chromium-browser-l10n but it is not going to be installed
 chromium-codecs-ffmpeg : Conflicts: chromium-codecs-ffmpeg-extra but 83.0.4103.97-0ubuntu0.20.04.1 is to be installed
 chromium-codecs-ffmpeg-extra : Conflicts: chromium-codecs-ffmpeg but 83.0.4103.97-0ubuntu0.20.04.1 is to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).