Examine source code of Passera

{
  "applications": {
    "gecko": {
      "id": "{f7f6e8ea-ceea-48fd-96f0-5e9133e91bdb}",
      "strict_min_version": "52.0"
    }
  },
  "author": "Iván Ruvalcaba",
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "img/icon-48.png",
    "default_popup": "static/popup.html",
    "default_title": "Passera"
  },
  "description": "Passera turns entered text into a strong password up to 64 characters long.",
  "homepage_url": "https://github.com/ivanruvalcaba/passera",
  "icons": {
    "16": "img/icon-16.png",
    "32": "img/icon-32.png",
    "48": "img/icon-48.png",
    "64": "img/icon-64.png"
  },
  "manifest_version": 2,
  "name": "Passera",
  "permissions": [
    "clipboardWrite"
  ],
  "short_name": "Passera",
  "version": "0.1.7resigned1"
}