Web Extensions
Web Extensions are a cross-browser system for developing browser add-ons that enhance or modify the functionality of web browsers like Chrome, Firefox, and Edge. They are built using standard web technologies such as HTML, CSS, and JavaScript, and can interact with web pages, browser tabs, and browser APIs to add features like ad-blocking, password management, or developer tools. The WebExtensions API provides a standardized set of APIs that work across multiple browsers, simplifying development and maintenance.
Developers should learn Web Extensions when they need to create browser-based tools, enhance user productivity, or integrate services directly into the browsing experience, such as for building ad-blockers, note-taking apps, or accessibility aids. It's particularly useful for projects targeting a wide audience across different browsers, as the standardized API reduces compatibility issues and allows for easier porting between platforms like Chrome and Firefox.