Chromium is a FOSS browser that inspired Google Chrome. Chrome is not completely open source, but the main foundational parts are open source and are made available as Google Chromium, shown in figure below, which has most of the functionality of Chrome, but it is missing the Google branding, automatic updates, and is used as the test and development foundation for Chrome releases. As a point of interest, chromium is the metal from which chrome is made, hence the name.
You can uninstall or remove an installed chromium-browser package itself from Ubuntu through the terminal, as shown in the command below:
$ sudo apt-get remove chromium-browser
Uninstall chromium-browser including dependent package
If you would like to remove chromium-browser and it’s dependent packages which are no longer needed from Ubuntu:
$ sudo apt-get remove --auto-remove chromium-browser
Use Purging chromium-browser
If you use with purge options to chromium-browser package all the configuration and dependent packages will be removed.
$ sudo apt-get purge chromium-browser
If you use purge options along with auto remove, will be removed everything regarding the package, It’s really useful when you want to reinstall again.
$ sudo apt-get purge --auto-remove chromium-browser