Google Chrome (on Windows): Password saving and management webapp LastPass offers a single space to drop your web site passwords and quickly use them on any browser—now including Chrome, through an extension available to development channel users.

LastPass works on Chrome similarly to how it does on Firefox and Internet Explorer, and it's a bit more convenient and functional than its bookmarklet form filler. The concept remains the same: you only have to remember your LastPass login, and LastPass remembers all your other passwords and, if you want, credit card and form data, too. Before you ask, here's how LastPass justifies its safety and encryption.

The extension and its features worked as promised on a development channel version of Google Chrome on Windows. Testing it out on a daily build of extension-supporting Chromium on Ubuntu, however, led to consistent crashes, and I'd expect the same out of Mac OS X builds, at least until those platforms mature or LastPass gets around to addressing them.

LastPass' Chrome extension is a free download, works wherever Chrome does, and requires a LastPass account to use.