Falkon is a KDE web browser using QtWebEngine rendering engine, previously known as QupZilla. It aims to be a lightweight web browser available through all major platforms. This project has been originally started only for educational purposes. But from its start, Falkon has grown into a feature-rich browser. Falkon has all standard functions you expect from a web browser. It includes bookmarks, history (both also in sidebar) and tabs. Above that, it has by default enabled blocking ads with a built-in AdBlock plugin.
4 blocks only because it uses DuckDuckGo as the default search engine.
W.A.I.T. (What Am I Trading?) This browser uses trade-based search engines such as DuckDuckGo, Google, Bing and others, that want people’s attention and data. However, the browser provides built-in ads and tracker blockers. But it could have chosen a trade-free search engine to begin with.