App Developer Toronto is a Chrome extension developed by steve.appdeveloper, showcasing the skills of one of the top-level mobile app developer agencies in Canada. Created as a part of a Toronto-based hackathon, this browser-based extension focuses on browser-related actions, with all the functionality taking place on the client side. As a free extension, App Developer Toronto serves as a portfolio, demonstrating the capabilities of the developers.

The extension's file and folder structure includes _locales for language support, CSS for custom code, an Icon Pack for easily changing the default icon, and Source Files for adding additional layers of functionality. The Manifest.json file provides important information to Chrome about the extension, such as its name and required permissions. The developers have open-sourced the extension on their Github repository, allowing others to reuse the code and folder structures for their own extensions.

Overall, App Developer Toronto is a testament to the expertise and talent of the app developers at AppVelocity. Their contribution to the open-source society through this extension is commendable, and the extension itself serves as a useful tool for those interested in browser actions.