The Biggest Changes in Firefox 89 Share Image: Mozilla The recent Firefox 89 update overhauls the browser’s desktop interface and introduces several welcome quality of life tweaks and expanded data privacy protections. Mozilla based the updated interface on user data and feedback, so hopefully the majority of users will be pleased with the changes. That said, even if you dig the new look, things have been rearranged and removed — and a few new settings added — so it might take some getting used to. To help you with the transition, we’ll go over all the updates in Firefox 89 you need to know about. To try these new features yourself, install the latest Firefox update by going to