TWBuyer Extensions is a free Chrome add-on developed by tim.tf.chen. It falls under the category of Browsers, specifically Add-ons & Tools. This extension provides users with the ability to compare historical prices on popular shopping centers in Taiwan, namely PChome, MOMO, and Yahoo Shopping.

With TWBuyer Extensions, users can easily track and analyze the price trends of products on these shopping platforms. This feature can be particularly useful for those who want to make informed purchasing decisions or simply keep an eye on the market.

One notable aspect of TWBuyer Extensions is its commitment to user privacy. The developer assures that no personal internet activity records are collected, ensuring the privacy and security of users' information.