An extension—also called a plug-in or an add-on—is a small program you download to add features to your browser. You can add the Dashlane browser extension to Firefox, Safari, Microsoft Edge, Google Chrome, and other Chromium-based browsers, such as Opera or Brave.
You don't need an extension on your phone or tablet because everything you need is contained in the Dashlane mobile app.
The Dashlane extension provides quick access to your data, allowing you to autofill logins and other information saved in Dashlane.
You can also open the web app in your browser to get the full benefits of Dashlane.