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Firefox, Vivaldi unveil their UI overhauls

Two popular web browsers, Vivaldi and Firefox, are overhauling their user interfaces. Vivaldi has already released version 8.0 with a redesigned UI that retains extensive customization options, while Firefox is currently testing its new design for a release later this year. The Firefox update will also revamp the settings page, integrate Mozilla services, and reintroduce a compact mode.

read2 min views18 publishedMay 21, 2026

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 GNOME, since it opted for its own fonts and had a ton of very custom UI that made it stand out moreso than even other browser. Before publishing this post, I did a quick install and check, and no, it seems not much has changed in that department. Not everyone will care – in fact, I think most people don’t – but I do, and I do whatever it takes to make my browser look properly native. Any Chromium-based browser is a hard sell in that area, and that applies doubly so for Vivaldi and its long list of custom UI elements. The other popular web browser overhauling its UI is Firefox, which is bringing its new UI to testing now, with an actual release later this year. You can clearly see that both Vivaldi and Firefox seem to be following a similar trend, even if I’m not entirely sure if it has a name yet. The new Firefox design also overhauls the settings page, integrates Mozilla services like its VPN, and brings back the compact mode (which has been hidden behind an about:config flag for years now). My biggest worry is how this will affect Librewolf and the KDE and GNOME themes I use, but it seems we’re going to have more than enough time to figure that out.

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