Falkon was orignially known as Qupzila.

Falkon is a new and very fast QtWebEngine browser. 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, you can manage
RSS feeds with an included RSS reader, block ads with a builtin AdBlock plugin,
block Flash content with Click2Flash and edit the local CA Certificates
database with an SSL Manager.

WWW: https://www.falkon.org/