Examine source code of Redirect Link

{
  "manifest_version": 2,
  "name": "Redirect Link",
  "version": "6.0.0",
  "description": "__MSG_extensionDescription__",
  "author": "fluks",
  "default_locale": "en",
  "icons": {
    "16": "data/logo_16x16.svg",
    "48": "data/logo_48x48.svg",
    "96": "data/logo_96x96.svg",
    "128": "data/logo_128x128.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "redirectlink@fluks",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "page": "background/background.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "data/logo_16x16.svg",
      "48": "data/logo_48x48.svg",
      "96": "data/logo_96x96.svg",
      "128": "data/logo_128x128.svg"
    },
    "default_title": "Redirect Link",
    "default_popup": "browser_action/popup.html"
  },
  "permissions": [
    "storage",
    "contextMenus",
    "tabs",
    "<all_urls>",
    "cookies",
    "webRequest",
    "webRequestBlocking"
  ]
}