Examine source code of GeoShift

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "3.4",
  "default_locale": "en",
  "homepage_url": "https://getfoxyproxy.org/",
  "author": "Eric Jung",
  "icons": {
    "16": "image/icon.png",
    "32": "image/icon32.png",
    "48": "image/icon48.png",
    "128": "image/icon128.png"
  },
  "background": {
    "page": "content/background.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "image/icon.png",
    "default_popup": "content/popup.html",
    "default_title": "__MSG_extensionName__"
  },
  "permissions": [
    "proxy",
    "notifications",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "geoshift@eric.h.jung",
      "strict_min_version": "91.1.0"
    }
  }
}