Examine source code of MoeyyProxySender

{
  "manifest_version": 2,
  "name": "MoeyyProxySender",
  "version": "1.0",
  "description": "Send github releases to moeyy github proxy to download",
  "icons": {
    "48": "icon/githublogo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.github.com/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "permissions": [
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2758b3b3-a781-4c55-88ea-4125de0c5a43}"
    }
  }
}