Get lyrics of currently playing Spotify song so you don't sing along with the wrong ones and embarrass yourself later.
The SwagLyrics extension extends Spotify Web Player support to the SwSpotify (https://swaglyrics.dev/SwSpotify) python library. This allows developers to make cross-platform applications that interact with Spotify without worrying about each OS themselves. The extension is open source at https://github.com/SwagLyrics/SwagLyrics-Chrome-Extension.
If you're an end user redirected to the extension by a dev, then all you need to do is to install this extension to enable support for the Spotify Web Player!