Other Versions of 1Password

Starting in 1Password 3.6, the minimum system version required is Mac OS X 10.6 (Snow Leopard).

If you are on 10.4 or 10.5, you can download one of the versions below. While we are happy to help if you have problems using these other releases, new features will not be added so it is recommended you upgrade to a newer version of OS X as soon as possible.

1Password 3 for Mac OS X Leopard (10.5)

1Password 3.6 added support for OS X 10.7 (Lion), replacing OS X 10.5 (Leopard) support. The last supported version for Leopard is 1Password 3.5. Download.

Firefox 3, 4, 5, and 6

It’s really a good idea to upgrade to the latest Firefox version if at all possible but if you really need to stay on a previous version of Firefox, you can download the old 1Password extensions here:

Once downloaded, show the file in Finder and then drag and drop it onto an open Firefox window.

Google Chrome Extension for Leopard, Chromium, Chrome Canary, and RockMelt

The last version of the 1Password extension to support Google Chrome on Leopard, as well as Chromium, Google Chrome Canary, and RockMelt was version 3.6.3. You can download this version of the Chrome extension from here:

Important Installation Note: Chrome will prevent installation if a newer version is already installed. Be sure to go to the Window > Extensions screen and uninstall your existing version of 1Password. Then restart Chrome; this is important to avoid a Chrome bug where it incorrectly reports the file as invalid. After restarting Chrome, click the link above to start the install process.

Automatic Update Note: The automatic updater in this version has been disabled temporarily until the new Chrome extension is able to support the Chromium, Canary, and RockMelt Chrome variants. Once support is added you will be automatically updated, except on Leopard.

Camino 2, Flock and Older Browsers

1Password 3.5 was the last version to support Camino 2 and Flock. Download

1Password 2 for Mac OS X Tiger (10.4)

1Password 2.12.1 was the last version to support Tiger. Download

Note that 1Password 2 is free for 1Password 3 owners. In other words, 1Password 3 licenses will work in 1Password 2.