Vivaldi: Vivaldi takes the Window Panel to another level.

Vivaldi: Vivaldi takes the Window Panel to another level.. “Vivaldi’s Window Panel is just one of our desktop browser’s many unique features. While most browsers provide a basic tab bar, Vivaldi also has a built-in panel where you can access the tabs in your window. This ‘tree-style view of tabs’ on the side of the browser window gives you another way to manage your tabs. Until now, this panel was limited to the active window. Now, its functionality has been expanded for all your open windows, making it a Windows Panel.”