Examine source code of IntoWords Cloud

{
  "manifest_version": 2,
  "version": "3.8.9",
  "name": "IntoWords Cloud",
  "description": "IntoWords Cloud for Firefox - Make reading and writing easy.",
  "author": "Vitec-MV",
  "homepage_url": "https://www.vitec-mv.com/dk/produkter/intowords",
  "default_locale": "en_GB",
  "options_page": "options.html",
  "offline_enabled": false,
  "devtools_page": "panel.html",
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/images/icon-16.png",
      "32": "assets/images/icon-32.png",
      "128": "assets/images/icon-128.png"
    }
  },
  "icons": {
    "16": "assets/images/icon-16.png",
    "32": "assets/images/icon-32.png",
    "128": "assets/images/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "contentscript.bundle.js",
        "cloudapp.bundle.js",
        "ocr.bundle.js",
        "audio.bundle.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "https://accounts.google.com/o/oauth2/*",
        "https://cloudapp-test.intowords.com/*",
        "https://cloudapp-dev.intowords.com/*",
        "https://cloudapp.intowords.com/*",
        "https://signon-test.vitec-mv.com/*",
        "https://signon-dev.vitec-mv.com/*",
        "https://signon.vitec-mv.com/*",
        "https://orbit.texthelp.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": false,
      "match_about_blank": true
    },
    {
      "js": [
        "defaultiframe.bundle.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "match_origin_as_fallback": true,
      "exclude_matches": [
        "https://accounts.google.com/o/oauth2/*",
        "https://cloudapp-test.intowords.com/*",
        "https://cloudapp-dev.intowords.com/*",
        "https://cloudapp.intowords.com/*",
        "https://signon-test.vitec-mv.com/*",
        "https://signon-dev.vitec-mv.com/*",
        "https://signon.vitec-mv.com/*",
        "https://docs.google.com/*",
        "https://orbit.texthelp.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    },
    {
      "js": [
        "defaultrecitation.bundle.js",
        "defaultattachment.bundle.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "https://accounts.google.com/o/oauth2/*",
        "https://cloudapp-test.intowords.com/*",
        "https://cloudapp-dev.intowords.com/*",
        "https://cloudapp.intowords.com/*",
        "https://signon-test.vitec-mv.com/*",
        "https://signon-dev.vitec-mv.com/*",
        "https://signon.vitec-mv.com/*",
        "https://docs.google.com/*",
        "https://orbit.texthelp.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "js": [
        "office.bundle.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "https://accounts.google.com/o/oauth2/*",
        "https://cloudapp-test.intowords.com/*",
        "https://cloudapp-dev.intowords.com/*",
        "https://cloudapp.intowords.com/*",
        "https://signon-test.vitec-mv.com/*",
        "https://signon-dev.vitec-mv.com/*",
        "https://signon.vitec-mv.com/*",
        "https://docs.google.com/*",
        "https://orbit.texthelp.com/*"
      ],
      "exclude_globs": [
        "*docs.google*"
      ],
      "run_at": "document_idle",
      "all_frames": true
    },
    {
      "js": [
        "googledocsinjection.bundle.js"
      ],
      "matches": [
        "https://docs.google.com/*"
      ],
      "run_at": "document_start",
      "all_frames": false
    },
    {
      "js": [
        "googledocs.bundle.js"
      ],
      "matches": [
        "https://docs.google.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "js": [
        "gmail.bundle.js"
      ],
      "matches": [
        "https://mail.google.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "js": [
        "attributeremover.bundle.js"
      ],
      "matches": [
        "https://*.gyldendal.dk/*"
      ],
      "run_at": "document_idle",
      "all_frames": true
    },
    {
      "js": [
        "kahoot.bundle.js"
      ],
      "matches": [
        "https://*.kahoot.it/*"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "js": [
        "outlook.bundle.js"
      ],
      "matches": [
        "https://outlook.office.com/*",
        "https://outlook.office365.com/*",
        "https://outlook.live.com/*"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "host_permissions": [
    "<all_urls>",
    "file:///"
  ],
  "permissions": [
    "management",
    "downloads",
    "clipboardWrite",
    "clipboardRead",
    "activeTab",
    "storage",
    "tabs"
  ],
  "web_accessible_resources": [
    "assets/i18n/*",
    "assets/images/*",
    "googlekeyboardinjection.bundle.js",
    "googleannotatedcanvasinjection.bundle.js",
    "audio.html",
    "stt.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f3eb5f58-1101-4563-a9f5-bbd458245cd5}"
    }
  }
}