Examine source code of Slate for Firefox

{
  "manifest_version": 2,
  "name": "Slate For Firefox",
  "description": "Save any link to your Slate account.",
  "version": "1.0.0",
  "homepage_url": "https://slate.host",
  "icons": {
    "16": "public/icons/icon16.png",
    "48": "public/icons/icon48.png",
    "96": "public/icons/icon128.png"
  },
  "browser_action": {
    "default_icon": "public/icons/icon48.png",
    "default_title": "Slate for Firefox"
  },
  "background": {
    "scripts": [
      "jquery.js",
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": false,
      "js": [
        "content.js",
        "jquery.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "contextMenus"
  ],
  "commands": {
    "open-app": {
      "suggested_key": {
        "default": "Alt+S",
        "mac": "Alt+S"
      },
      "description": "Open the slate extension"
    },
    "open-slate": {
      "suggested_key": {
        "default": "Alt+O",
        "mac": "Alt+O"
      },
      "description": "Open the slate web app"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'none'",
  "web_accessible_resources": [
    "index.html",
    "/static/*",
    "jquery.js",
    "/public/*",
    "/fonts/*",
    "Inter-Regular.ttf",
    "../fonts/*"
  ]
}