Firefox, Vivaldi unveil their UI overhauls (opens in new tab)

Two popular web browser are overhauling their user interface, and the first to actually ship its new version is Vivaldi. Version 8.0 of this Chromium-based browser completely overhauls its UI, but retains its extensive customisation options, including the option to go back to the old look and feel if the new one doesn’t float your boat. I wonder if this update addresses some of my long-standing issues with Vivaldi where it just seemed impossible to integrate the browser properly with KDE or G...