Google's browser now has an extension to use the Web of Trust, a project that lets people rate the trustworthiness of Web sites and see how others have rated them.
It's one of a host of relatively widely used extensions available on other browsers but now on their way to Chrome, whose extensions framework is just getting off the ground. There also are extensions (called add-ons in the Firefox realm) for Delicious and Xmarks, for example.
The extension takes advantage of the newer "mole" feature that lets windows pop up from the bottom of the screen. (The "mole" term originated with the work Google's Gmail team on instant-message windows; closing a number of them is like playing Whack-a-Mole.) However, Web of Trust programmers are considering using a newer extensions possibility called browser actions, which builds an extension interface into a button that appears along the top of the Chrome window.
"Browser Actions look promising though and we're looking forward to using them in future," said programmer Sami Tolvanen in a mailing list announcement. He also offered a list of suggestions for the Chrome extensions interface.
Separately, Google announced a new developer preview version, Chrome 18.104.22.168 for Windows, 22.214.171.124 for Mac OS X, and 126.96.36.199 for Linux. In the Windows version is a new browser action feature, pop-up windows.