MIDI Player

Play all kinds of MIDI files in browser. Including MIDI 2.0. MIDI Player extension supports *.mid/*.kar/*.rmi/*.midi2 formats. It looks for MIDI files in hyperlinks and <audio>/<bgsound>/<object>/<embed> tags on the web pages, and plays them. For the best sound quality, you may want to install the Jazz-Plugin and the Jazz-MIDI extension. Same-origin limitation: MIDI files must be located at the same domain with the referencing web page, or at the CORS-enabled server. Please visit https://github.com/jazz-soft/midi-player to see the source code and share your feedback.

Screenshots from Chrome Web Store

Screenshots from Mozilla Add-ons