Free browser add-on from Mozilla Labs that keeps your bookmarks, saved passwords, browsing history and open tabs backed up and synchronized, with end-to-end encryption for your privacy and security. Synchronize Your Firefox Experience Across Desktop and Mobile The Weave Browser Sync add-on for Firefox is now generally available to seamlessly bridge your desktop and mobile Firefox experiences. Using this free browser add-on from Mozilla Labs, you can securely access all of your personal data across all of your supported devices, making your Web experience instantly more personal and useful. Weave Browser Sync backs up and synchronizes your bookmarks, saved passwords, browsing history and open browser tabs. And all of your data is encrypted end-to-end to ensure your privacy. Future releases of Weave Browser Sync will add support for backing up and synchronizing your browser add-ons, search plugins and other customizations and ultimately everything that makes your Firefox and Web experience personal.