Worldwide Radio is a multimedia extension for Firefox that provides access to a vast array of over 50,000 radio stations from various countries, including the USA, Russia, and Poland. This extension allows users to easily create a personalized list of their favorite online radio stations, making it simple to tailor their listening experience. Its user-friendly interface contributes to its popularity, and it has been recognized as a winner of the Firefox Quantum Extensions Challenge.

Privacy is a significant aspect of Worldwide Radio, as it does not collect or store any user data. The extension uses third-party servers to access radio station images, which are loaded dynamically as needed. To facilitate seamless streaming of audio content, it requires the "Access your data for all websites" permission. Worldwide Radio operates exclusively with open access links for audio, ensuring compliance with copyright regulations.