In a browser

If AdGuard protection is enabled and you still see ads, try to reproduce the following steps one by one:
Click the AdGuard icon in the menu bar, then click the gear icon. Select Preferences... → Network and make sure that Filter HTTPS protocol is enabled.
In the same Network section, make sure that Automatically filter applications is enabled. Click Applications… and check the checkbox next to the desired browser. If it’s not on the list, click + to add it.
Go to the Filters tab and turn on AdGuard Base filter and filters for your language. To add a filter, click +.
Click the AdGuard icon in the menu bar again, then click the gear icon. Select Check for Filter Updates.
Downloading AdGuard To install AdGuard, click the file indicated by the arrow Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, drag the AdGuard icon to the "Applications" folder. Thank you for choosing AdGuard! Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, click "Install". Thank you for choosing AdGuard!
Install AdGuard on your mobile device