Kaidi by Jkelol111

Remote for Kodi (source)

IC Recorder

sound recording made super easy (more info)

Converter Online

Hosted app

BitMidi

Firefox OS Marketplace

FoxyMPD

Firefox OS Marketplace

SimpleMPC

Firefox OS Marketplace

Kodi-XBMC Remote

Firefox OS Marketplace

Media Remote

Firefox OS Marketplace

Xender

uploaded from a Nokia 8110 for Jio Phone users