Now testing it in 3.7.7-32, I can play Accuradio, import manually my bookmarks and passwords.
It looks nice, I'll work today with it with my common tabs (Accuradio, Protonmail, Linkedin + several other tabs) in my slow HP to see if is faster than Chromium.
In fact, as is a Firefox fork I prefer it because no G integration added.
Thanks @Rebel450 to let us to know it, I'll give @Thanatermesis and you all my feedback in some days working with it.