Manifest File (manifest.json): Defines the extension's metadata, permissions, and required scripts. Loads content.js on Epidemic Sound pages. Runs background.js to handle authentication and API communication.
Track Detection (content.js): Runs in the Epidemic Sound tab. Extracts the song title and artist from the page every 5 seconds. Sends this information to background.js.
Authentication (background.js): Checks if a Last.FM session key is stored locally. If missing, redirects the user to Last.FM for authentication. Retrieves and saves the session key for future use.
Scrobbling (background.js): Receives track data from content.js. Sends it to Last.FM's API using the stored session key. Logs successful scrobbles or errors.