After not getting any response for my question, I think I should uninstall and remove data of Chromium from Ubuntu.
As uninstalling Chromium does not remove its data (like browser history, settings), I want to know where are the data of Chromium located and how to remove them safely?
The data for chromium will be in one of the hidden directories in hour /home/username folder, either ~/.chromium or somewhere in ~/.config As I don't have chromium installed, I don't have the exact location.
According to chromium.org (which you could have checked yourself) the data is stored at ~/.config/chromium
