Webgazer-ext is a Chrome extension developed by ali.shirali.webstore. It is a free add-on that falls under the category of Browsers and subcategory of Add-ons & Tools.

This extension has been designed by a multi-national research group centered at EPFL to study users' behavior while reading Wikipedia. It serves as a crowdsourcing tool to collect the eye-gaze data of Wikipedia readers. The current version of the extension is exclusively available to a small community of paid Amazon Mechanical Turkers and is not intended for general installation.

It is important to note that Webgazer-ext does not send the user's video over the web, and all processes are conducted within the browser.