Examine source code of HTTPS Everywhere Lite+

{
  "manifest_version": 2,
  "name": "HTTPS Everywhere Lite+",
  "version": "1.3",
  "description": "Redirect HTTP to HTTPS with whitelist and toggle.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icons/logo_64.png",
    "default_title": "HTTPS Everywhere Lite+",
    "default_popup": "options.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e7050a5-72b2-4157-95a3-56d0b51626bc}"
    }
  }
}