So make the jump and keep your Power Mac relevant. Our software is open-source, written by Power Mac users and maintained by Power Mac users, incorporating our custom new PowerPC-only features plus the latest bug fixes, security improvements and all the powerful technology underlying Mozilla Firefox.

▶▶ Feature Parity Release 27 is a feature, bugfix and security update. Are you up to date?

Be sure to read the Release Notes for FPR27 and the official TenFourFox FAQ before you begin. Your Mac must be running at least Mac OS X 10.4.11. Then pick the version for your processor:

If your browser can't establish a secure connection to the download server, try using the TenFourFox Downloader* to download the right version automatically (Power Macs only). ▶▶to the download server,to download the right version automatically (Power Macs only). The Downloader will not operate on an Intel Mac. Although the Downloader uses current encryption methods to download the browser, the Downloader itself is accessed over unencrypted HTTP. If you are in an environment where your network may be tampered with, we recommend using another computer for the initial download or manually verifying the download with * The TenFourFox Downloader requires a Power Mac running 10.4 or 10.5.Although the Downloader uses current encryption methods to download the browser, the Downloader itself is accessed over unencrypted HTTP. If you are in an environment where your network may be tampered with, we recommend using another computer for the initial download or manually verifying the download with cryptographic hashes

Double-click the .zip file to decompress it, and move the application to your Applications folder. Problems? Ask questions and get help at our TenFourFox Tenderapp Support site.

Please note: TenFourFox does not support Flash or Java (read why).

Keep up with our progress and try beta versions on the TenFourFox Development blog!