A recent Chromium build added a feature that converts user scripts into extensions. Until now, Google's browser didn't provide an interface for adding and managing user scripts, so you had to manually copy the scripts to a folder.
"Lots of users still complain that Chrome does not support Greasemonkey user scripts. Even though we have had the infrastructure in place to handle user scripts for some time now, it has never been clear how the feature would relate to full extensions, and so it has remained incomplete," explains Aaron Boodman, a Google Chrome developer who created the Greasemonkey extension.
Now you can visit userscripts.org and any other site that links to Greasemonkey scripts and other flavors of user scripts, click on the link to a *.user.js file and install it in one click.
Like any other extensions, user scripts can be disabled or uninstalled by visiting chrome://extensions/ or selecting "Extensions" from the Tools menu.
This feature is only available in the latest Chromium builds, but it will soon be added to Google Chrome's dev channel, which already enables the support for extensions.
This week, Google released the first beta version of Chrome 4 for Windows, so the stable version should be available in the coming weeks. Chrome 4's major selling points should be the support for extensions and the long-awaited Mac & Linux ports.