Examine source code of CSS Objectnet

{
  "applications": {
    "gecko": {
      "strict_min_version": "54.0",
      "id": "{80f677c2-8875-40ea-b77c-5632b2c44e70}"
    }
  },
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background/index.js"
    ]
  },
  "devtools_page": "devtools/page/index.html",
  "default_locale": "en",
  "description": "__MSG_description__",
  "name": "__MSG_name__",
  "permissions": [
    "<all_urls>",
    "tabs"
  ],
  "version": "1.0.1resigned1",
  "icons": {
    "48": "assets/images/icon-48b.png"
  },
  "author": "Martin Giger"
}