Just a few days ago I tried to pay for flight tickets on flypgs.com. Multiple attempts on Firefox didn’t work, while the first attempt on a Chromium-based one did. It might have been a fluke, but every so often issues like these do happen. And for some reason switching the browser does bear a positive result. YMMV though.
Thanks for chiming in! I do think that Vivaldi is excellent in some regards. However, it seems that they don’t apply all security related updates every release, which obviously affects security negatively. Thus, making me less enthusiastic to use it. I was about to install it when I read up on that…