manifest.json

{
  "manifest_version": 3,
  "name": "Mangadex media controls",
  "version": "1.0",
  "author": "agaudreau1997",
  "description": "Adds media controls functionnality to mangadex to navigate through pages",
  "permissions": ["tabs", "contextMenus"],
  "content_scripts": [
    {
      "matches": [
        "https://mangadex.org/chapter/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "commands": {
    "prev": {
      "suggested_key": {
        "default": "MediaPrevTrack",
        "mac": "MediaPrevTrack"
      },
      "description": "Previous page",
      "global": true
    },
    "next": {
      "suggested_key": {
        "default": "MediaNextTrack",
        "mac": "MediaNextTrack"
      },
      "description": "Next page",
      "global": true
    }
  },
  "background": {
    "service_worker":  "background.js"
  },
  "action": {
    "default_icon": {            
      "16": "logo.png"
    },
    "default_popup": "popup.html"
  }
}