I know all the reasons I should be on Firefox, but I just love Vivaldi so much.
I've been using it for years and have it tuned perfectly for anything I do. It's feature rich, and fast.
Occasionally there are apps or even tools in life where you are like holy shit, this is exactly made for how I want to do a task/job.
My gestures are so ingrained in me, sometimes I catch my hand moving the mouse to perform an action in another unrelated app. My brain notices instantly but can't stop my hand from trying to do it anyway. It makes me laugh.
Yeah, as long as Firefox (or a fork) doesn't have native gestures, I can't fulltime swap to it. Gestures addons are not the same. Anyone that used vivaldi (or opera) for any serious length of time knows what I mean.
In fact Opera were more ahead of their times, because they were the first to add tabs and had a lot of features that we now take for granted. I know this because I used Netscape browser (before they were called mozilla) and Opera 4.x at the time.
For those who want the old tabs back: under settings -> appearance, you can set the ui density to compact (sorry, can't tell you the exact name, I have my system set to German)
Some months ago they completely fucked up their address bar suggestions to the point where I have tried again to move to another browser. I'd prefer them to fix that before updating their UI.