You can use extensions to block ads in Yandex.Browser. Install an extension that is supported by the browser on your tablet, and it will block ads on websites.
Yandex.Browser supports ad-blocking extensions that are compatible with Samsung Internet for Android, such as:
Unlike Antishock, which only blocks disturbing ads, 3rd-party extensions have their own blocking criteria. An outside extension is also responsible for updating ad filters.
To turn on ad blocking:
To disable ad blocking, open your list of extensions and select Disable. If you delete the extensions in your list from your tablet, the Disabled option will be selected automatically.
From time to time, you might find that you need to allow certain sites to display ads. For example, when the extension blocked necessary page elements along with an ad, or when a site won't open while ad blocking is enabled.
Tap → Unblock contents.
To resume ad blocking, tap Block content.