• TechCrunch, Thursday, December 10, 2009 3:11 PM

Google just launched its Chrome Extensions service, which grew from 300 to 480 browser add-ons overnight, and is expected to hit 500 by Thursday night. "And it's easy to see why," according to TechCrunch, which was present for a media presentation demonstrating the service's demonstrable ease of use.

"The reason they're so easy to build is because they use the same technology that any Web developer will already be familiar with," writes TechCrunch. Notes a Google engineer, "Extensions are just Web pages." Also of note, Chrome extensions are expected to be working on the new Chrome for Mac by the end of the week.

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