My Notes is a versatile Firefox extension that enhances web browsing with personalized annotations. It allows users to create sticky notes, multimedia messages, and text highlights directly on web pages. Sticky notes can be freely placed, resized, and edited, while audio and video annotations offer robust multimedia integration. Users can also highlight text with various formatting options, including crossouts and underlines, making it easy to emphasize important information.

The extension features an intuitive sidebar that lists all annotated pages, allowing users to manage notes efficiently. Users can export notes, import XML files, and delete annotations easily. The context menus provide additional customization options such as changing colors and editing URLs. My Notes ensures a seamless experience by requiring users to reload the browser after installation, ultimately enhancing personal productivity and organization during web usage.