I installed the Vivaldi browser a few days ago and have been trying it out. I have mostly been liking it, but it doesn’t seem entirely ready for prime time yet—the problem I ran into repeatedly was that it routinely errored out when moving to the next item in my feed on Feedbin.

@petebrown That's very weird. I don't use Feedbin, but I've been using Vivaldi on both Windows and Linux daily for many months and have never had anything like that. You might want to uninstall and then reinstall again and see if that helps.