manifest.json

{
    "name": "Spotify Hotkeys",
    "description": "Keyboard shortcuts to play, pause, next and previous tracks in Spotify Web Player.",
    "manifest_version": 2,
    "author": "TsunDoge",
    "version": "1.5.5",
    "homepage_url": "https://github.com/TsunDoge/spotify-hotkeys-firefox",
    "applications": {
        "gecko": {
            "id": "{82a01566-f5cf-4c86-9aec-7da38b2a7385}"
        }
    },
    "icons": {
        "64": "icons/logo-64.png"
    },
    "background": {
        "scripts": ["background.js"]
    },
    "content_scripts": [{
        "matches": [
            "https://open.spotify.com/*",
            "https://play.spotify.com/*"
        ],
        "js": [
            "notifications.js"
        ],
        "run_at": "document_end"
    }],

    "commands": {
        "play-pause": {
            "suggested_key": {
                "default": "Alt+Shift+W"
            },
            "description": "Play/pause the current song"
        },
        "next": {
            "suggested_key": {
                "default": "Alt+Shift+Right"
            },
            "description": "Next track"
        },
        "previous": {
            "suggested_key": {
                "default": "Alt+Shift+Left"
            },
            "description": "Previous track"
        },
        "shuffle": {
            "suggested_key": {
                "default": "Alt+Shift+D"
            },
            "description": "Shuffle playlist"
        },
        "repeat": {
            "suggested_key": {
                "default": "Alt+Shift+R"
            },
            "description": "Repeat playlist"
        },
        "play-album": {
            "suggested_key": {
                "default": "Alt+Shift+G"
            },
            "description": "Play/pause the current playlist/album"
        },
        "save-track": {
            "suggested_key": {
                "default": "Alt+Shift+L"
            },
            "description": "Save track"
        },
        "mute": {
            "suggested_key": {
                "default": "Alt+Shift+M"
            },
            "description": "Mute/Unmute"
        },
        "volume-up": {
            "suggested_key": {
                "default": "Alt+Shift+Up"
            },
            "description": "Volume up"
        },
        "volume-down": {
            "suggested_key": {
                "default": "Alt+Shift+Down"
            },
            "description": "Volume down"
        }
    },
    "permissions": ["https://open.spotify.com/*", "https://play.spotify.com/*", "tabs", "storage", "notifications"],
    "browser_action": {
        "default_icon": "icons/logo-32.png",
        "theme_icons": [{
            "light": "icons/logo-32-light.png",
            "dark": "icons/logo-32.png",
            "size": 32
        }],
        "default_title": "Spotify",
        "default_popup": "panel/panel.html"
    },
    "options_ui": {
        "page": "options/options.html",
        "browser_style": true
    }
}