You can block unwanted ads by downloading the AdBlock extension and managing your ad settings on Google. Signing into your Google account and then visiting the Ads Settings option allows you to add or remove interests and demographic details used to show ads. Some Google ads can also be removed by hovering your mouse over the ad and clicking the X button that appears. A drop-down menu should then appear with the option to mute the ad.
After an ad is muted, the ad should fade away and allow surrounding content to fill the empty space. However, muted ads might reappear after clearing your browser’s cookies or visiting websites outside the Google network. Some advertisers might also use another company to show the same ad. Google search and Gmail might show ads with an icon or link, which you can click to open the Ads Settings and scan a list of advertisers you’ve blocked.
The AdBlock extension is available for Google Chrome and Safari web browsers. The extension works automatically but also provides an option to allow ads with only two clicks. AdBlock is available to download for free and accepts donations. As of 2015, over 40 million users have downloaded the extension, and it has been featured on The New York Times and CNN.