Tor Browser 15.0 is now available from the Tor Browser download page and distribution directory. This is our first stable release based on Firefox ESR 140, incorporating a year's worth of changes that have been shipped upstream in Firefox. As part of this process, we've also completed our annual ESR transition audit, where we reviewed and addressed around 200 Bugzilla issues for changes in Firefox that may negatively affect the privacy and security of Tor Browser users. Our final reports from this audit are now available in the tor-browser-spec repository on our GitLab instance.
The ongoing development of Tor Browser is made possible thanks to the support of our community. If Tor Browser is important to you, now is a great time to support our mission to FREE THE INTERNET, as all donations will be matched by Power Up Privacy through December 31, 2025.
What's new?
Desktop
Tor Browser 15.0 inherits a multitude of useful new features and usability improvements from Firefox that have passed our audit. For desktop, these include vertical tabs: providing a more manageable, alternative layout with open and pinned tabs stacked in a sidebar rather than across the top of the window. For ease of access, Bookmarks can be retrieved directly from the sidebar when expanded too. However, regardless of whether you prefer horizontal or vertical tabs, everyone benefits from the addition of tab groups: helping you keep on top of the clutter by organizing tabs into collapsible groups that can be given names and color-coded. Tor Browser 15.0 also inherits elements of Firefox's recent address bar refresh, including a new unified search button that allows you to switch search engines on the fly, search bookmarks or tabs, and reference quick actions from the same menu.
Note that Tor Browser tabs are still private tabs, and will clear when you close the browser. This enforces a kind of natural tidiness in Tor Browser since each new session starts fresh – however for privacy-conscious power users, project managers, researchers, or anyone else who accumulates tabs frighteningly quickly, we hope these organizational improvements will give you a much needed productivity boost.
Android
On Android, screen lock adds an extra layer of security to your browsing sessions. After enabling screen lock in Settings > Tabs, your tabs will lock automatically when you switch away from the browser without closing it. Upon returning to the app, you'll be prompted to unlock your tabs using your fingerprint, face, or pass code, depending on which option your device is configured to use.
Like Tor Browser for Desktop, your browsing session will still be cleared when Tor Browser is closed. However, this feature provides peace of mind in a specific scenario: by ensuring that your browsing remains private even if someone has gained temporary access to your unlocked phone with Tor Browser open in the background – whether you've handed it to a friend, or left your device sitting on a table.
What's changing?
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