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. Click the Launchpad icon in the Dock.
2. Locate Adblock Plus and click Uninstall.
   A dialog box opens.
3. Position the pointer over the Adblock Plus app icon, press, and hold.
4. When all the icons start to jiggle, touch the X on the ABP icon and tap Delete.

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.