Agile Bits, makes of the popular 1Password utility, had already brought Lion support and Safari 5.1 support to its product before either was actually released, but updated its blog post on the topic to keep readers informed on issues that have come up with the inevitable changes. The Safari plug-in for 1Password was completely re-designed for Safari v5.1 as a "proper" extension, and as a result is still missing a few features from the previous version.