It is unfortunately closed source, however.

any suggestion for a good opensource browser? Firefox is my main browser (and the only one recommended by privacytools.io), but having a chromium-based one is good to have too.

- Brave: it has been pushing opt-in-by-default ads and crypto widgets

- Vivaldi: 5% closed source

- Edge: not open source (yet?)

- Chromium: lacks too many features

True, I don’t care though.

Interesting response considering your gnusername! :-) (sorry, couldn't help it!)

vivalidi is open source https://vivaldi.com/source

you can't contribute to it like you can with something on github, but the source is open none the less

Per their own documentation, this is their patched version of Chromium and not the full browser (notably the UI HTML/JS code is not included): https://help.vivaldi.com/desktop/privacy/is-vivaldi-open-sou...

since Tabkit died with xul and Tree Style Tab beeing a poor replacement (that crashes often) i use vivaldi althou its still not as good as the original opera or ff-tabkit were in regards to the vertical tab ux.

browser ux really seems like 'one step forward, two backward' over the last two decades.