Please check the user manual first (EN/DE) and find the knowledge base and answers to technical questions in the FAQs of the former eBlocker GmbH. Mac and iOS users please read this article in case of certificate issues.
Hide ALL ads (even those that are not blocked)
eBlocker was not designed as a general ad-blocker and blocks third party tracking ads only - today.
First party ads as well as other (not blocked) ads can be hidden by CSS - similar to what some adblocker plugins do. Of course this trick is not improving privacy but clears visibility only.
If you feel eBlocker should implement CSS ad hiding to hide all/most ads, please vote for this feature.