Update 6/9 0600UTC: Added another known issue.

Tor Browser 9.0a6 is now available from the Tor Browser Alpha download page and also from our distribution directory.

Note: this is an alpha release, an experimental version for users who want to help us test new features. For everyone else, we recommend downloading the latest stable release instead.

This release features important security updates to Firefox.

This is the first alpha release based on Firefox ESR68, and therefore contains several important changes such as the rebasing of our Firefox patches, toolchain updates, integration of Torbutton directly into the browser and updates to Tor Launcher to make it compatible with ESR68.

If you find any issue with this release, please help us by reporting them so we can fix as much as we can before the first stable release based on ESR68, which is planned for October 22.

Known issues:

Tor Browser 9.0a6 is not reproducible on some platforms right now: We have issues on 32bit Linux, Windows, and Android. Those are planned to be fixed in the next alpha release, though, to give the usual guarantees reproducible builds aim to provide.

New Identity and the bridge configuration in the browser are not easily accessible anymore as we removed the onion button. We are currently working on a replacement for both: New Identity will be exposed directly in the toolbar and the bridge configuration gets integrated in the Firefox settings. For New Identity please use the shortcut (Ctrl+Shift+U) for now or the item in the hamburger menu.

We already have a number of known tickets we need to work on in the coming weeks. The most important ones are tagged with the tbb-9.0-must-alpha keyword. Moreover, we have accumulated Firefox 68 ESR related issues over the time that can easily be queried with our ff68-esr keyword.

The full changelog since Tor Browser 9.0a5 is: