First of all, download the latest release from the Releases tab
After unzipping the folder to a convenient location, open your browser and go to your extensions page (chrome://extensions for Chrome, edge://extensions for Edge, and so on).
On the top right corner, toggle the "Developer Mode" to on.
Find the load unpacked button and select the unzipped folder of AnotherAdBlock.
If you see the icon with an "ON" banner, it is ready for use!
Enjoy ad/tracker-free browsing! Blocked ads will get something like this:
and in the console this will be shown: