Hi, welcome to Firefox!
You can look for add-ons on addons.mozilla.org (or just select Extensions and themes in the Firefox menu and use the search bar on the page that appears). To find an ad blocker, you can literally use "ad blocker" as a search query. Top recommended ad blockers are uBlock Origin, AdGuard and Ghostery, but there are also lots of others to choose from!
Hi, welcome to Firefox!
You can look for add-ons on [https://addons.mozilla.org/firefox/ addons.mozilla.org] (or just select Extensions and themes in the Firefox menu and use the search bar on the page that appears). To find an ad blocker, you can literally use [https://addons.mozilla.org/firefox/search/?q=ad%20blocker "ad blocker"] as a search query. Top recommended ad blockers are [https://addons.mozilla.org/firefox/addon/ublock-origin/ uBlock Origin], [https://addons.mozilla.org/firefox/addon/adguard-adblocker/ AdGuard] and [https://addons.mozilla.org/firefox/addon/ghostery/ Ghostery], but there are also lots of others to choose from!