Or, you can grab the latest build of Chromium, the open source version of the Chrome browser. If you can't wait until early next year to start trying out Chrome extensions, you can sign up for the developer version of Chrome for Mac (you will have to reinstall the browser). There are hundreds of extensions currently available for Chrome, including a Gmail notifier, ad blocker, Google Wave notifier, ChromeMilk (Remember the Milk widget), and Chromed Bird (the Chrome equivalent of Echofon, aka TwitterFox). Similar to Firefox add-ons, Chrome extensions are small widgets that sit on your toolbar and extend the functionality of your browser. Beta users can reportedly expect to see extension capability by early 2010. That may all change very soon, however, according to TechCrunch, as the search giant hopes to bring extensions to the Chrome for Mac developer channel by the end of the week.
Earlier this week, Google launched browser extensions for Chrome for Windows and Linux users, but not for the newly released Mac version of Chrome.