Examine source code of Primafact

{
  "manifest_version": 2,
  "name": "Primafact",
  "description": "This extension provides Primafact integration in your browser.",
  "version": "0.1.5.1resigned1",
  "author": "Sandcat Software Inc.",
  "applications": {
    "gecko": {
      "id": "{9df92e74-4015-4f89-adaa-50c35d0de017}",
      "strict_min_version": "42.0"
    }
  },
  "icons": {
    "16": "PfIcon16.png",
    "24": "PfIcon24.png",
    "32": "PfIcon32.png",
    "44": "PfIcon44.png",
    "48": "PfIcon48.png",
    "50": "PfIcon50.png",
    "64": "PfIcon64.png",
    "128": "PfIcon128.png",
    "150": "PfIcon150.png"
  },
  "permissions": [
    "webRequest",
    "*://cloud.primafact.com/*",
    "webRequestBlocking",
    "nativeMessaging",
    "notifications",
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ]
}