Examine source code of Bug Tray

{
  "manifest_version": 2,
  "name": "Error Tracker",
  "version": "1.0",
  "description": "Captures and displays network and console errors",
  "permissions": [
    "tabs",
    "storage",
    "webRequest",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5de8c5b6-c39e-4d96-9053-f1c093076673}"
    }
  }
}