uBlock Origin is the best web browser addon I’ve found to help block website ads. Installing the plugin into your web browser and using it is as easy as clicking ‘Add to browser’. Extensions can also be easily removed by going into you web browser settings and then search for ‘Extensions’. Click on ‘Remove Extension’ next to the extension you’d like to remove. Stop obtrusive advertising in it’s tracks.
uBlock Origin for Mozilla Firefox
uBlock Origin for Google Chrome
uBlock Origin for Microsoft Edge