Examine source code of YEPF Debug For Firefox

{
  "name": "YEPF Debug For Firefox",
  "description": "YEPF Debug extension for Firefox(@jimmydong)",
  "version": "0.21resigned1",
  "permissions": [
    "storage",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon/!!.png",
    "default_title": "YEPF Debug",
    "default_popup": "popup.html"
  },
  "icons": {
    "24": "icon/24.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "64": "icon/64.png",
    "128": "icon/128.png"
  },
  "manifest_version": 2,
  "web_accessible_resources": [
    "icon/48.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e58ebe3a-c3ca-46ec-96b9-e48965fdf461}"
    }
  }
}