My, my, my! :)
Qupzilla browser got renamed to Falkon and moved to KDE infrastructure.
A Chromium based. decent, cross-platform, FOSS, snappy, advanced, based on QtWebEngine web browser with a lot of features and tweaking.
You can give it a try, it s worth it.

https://github.com/QupZilla/qupzilla

https://community.kde.org/Incubator/Projects/Falkon

https://phabricator.kde.org/source/falkon/

https://qupzilla.com/