Vivaldi also shares a design lineage with Opera 12 and previous, in terms of who the designers are/were. When we lost Opera, I think we lost the open web in a lot of ways. As much as Opera was a closed-source proprietary engine etc. browser, it stood out against the background of the larger Web giants. When they folded and gave in to Google, I was horrified.

Still, the loss of a Community Firefox is a bad thing.