Tab stacks and mouse gestures are the 2 that I use the most, that don’t exist in Firefox. Tab hibernation is also extremely useful, but I don’t know if that exists in Firefox.
And in general there are so many useful tools, like bookmarking by stack and/or window etc.
Curios, what sets Vivaldi apart so much in features that makes it hard to switch to Firefox?
Tab stacks and mouse gestures are the 2 that I use the most, that don’t exist in Firefox. Tab hibernation is also extremely useful, but I don’t know if that exists in Firefox.
And in general there are so many useful tools, like bookmarking by stack and/or window etc.
Their website lists many of the main features.