Step 1: Go to the Mozilla Firefox Extensions Website
Type in a search engine “firefox extensions”. Or just go here. https://addons.mozilla.org/en-US/firefox/extensions/
Step 2: Install Adblock Plus
Type in the search bar at the top “adblock”. Click on the first option, which is Adblock Plus. Or just go here. https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/. Now click on the shiny green button that says “Add to Firefox”. (Make sure you are in the Firefox browser or it will just say “Download Now”. Now a windows will show up asking you to confirm the installation. Click “Install” again to confirm the installation. Now the Add-ons box will pop up, and proceed to download and install Adblock Plus. Once it is finished, it will prompt you to restart Firefox. Do so.
Step 3: Configure Adblock Plus
On the top bar, click on “Tools”. Then click Add-ons. Click the extensions tab, then find Adblock Plus in the list. Then click options. The Preferences windows will pop up. For now, leave “My Ad Blocking Rules” blank. This is for adding your own custom filters. On the top bar, click on “Filters” and then “Add Filter Subscription”. Your filter should already be added automatically, so just close this box and the Adblock Plus Preferences.
That’s all there is to it! Enjoy your ad-free web browsing!