> I'd love to be able to open up an arbitrary web page in this sidebar.
Vivaldi has that. (When Opera got bought out by some Chinese company, one of the original founders created Vivaldi. It's Chromium-based, so Chrome extensions work, and Chrome extensions not using Manifest V3 might end up not working soon).
Vivaldi has that. (When Opera got bought out by some Chinese company, one of the original founders created Vivaldi. It's Chromium-based, so Chrome extensions work, and Chrome extensions not using Manifest V3 might end up not working soon).