CUS recommends the use of uBlock Origin, an open-source web extension which blocks ads and trackers. Install it by following the link, or using your web browser's extension store.
Every now and then, a website will break, or tell you to disable your adblocker to continue. The easiest way proceed is clicking the uBlock Origin icon in your extensions toolbar, clicking the big power button (pictured below), and reloading. This will disable uBlock for that site.
(Advanced users can also use uBlock to block the notification telling you to disable your adblocker)
If you'd like to read up on uBlock, the documentation is here.