1. Right-click (Ctrl + click on Mac) on the Adblock Plus icon on your browser's toolbar and select Remove Extension.
2. When prompted, click Remove.

Or

1. In Firefox, go to about:addons
2. Find Adblock Plus in the list and click the three dots.
3. Select Remove.

1. Touch and hold the Adblock Plus app on the Home screen.
2. Tap Remove App.
3. Tap Delete App.
4. Tap Delete.

1. Quit both Adblock Plus (Adblock Plus > Quit) and Safari (Safari > Quit).
2. Go to Finder > Applications.
3. Right-click on the Adblock Plus icon and select Move to Trash. 

1. Right-click (Ctrl + click on Mac) on the Adblock Plus icon on your browser's toolbar and select Remove from Microsoft Edge.
2. When prompted click Remove.

Or

1. In Edge, go to edge://extensions/
2. Find Adblock Plus in the list and click Remove. 
3. When prompted, click Remove.

1. In Opera, right-click (Ctrl + click on Mac) on the Adblock Plus icon on your browser's toolbar and select Remove from Opera...
2. When prompted, click Remove.

Or

1. Go to opera://extensions/
2. Find Adblock Plus in the list and click Remove.
3. When prompted, click on Remove again.

1. Tap and hold the Adblock Plus for Samsung Internet icon.
2. When the bubble window appears above the icon, tap Uninstall.
3. Tap OK.