Examine source code of HTTPZ

{
  "applications": {
    "gecko": {
      "id": "httpz@cm.org",
      "strict_min_version": "60.0"
    }
  },
  "background": {
    "scripts": [
      "bg/main.js",
      "bg/runtime.js",
      "bg/tabs.js",
      "bg/webRequest.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "cs.js"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "Zapping those inZecure connections into sublime submission since ~2018.",
  "author": "claustromaniac",
  "homepage_url": "https://github.com/claustromaniac/httpz",
  "icons": {
    "64": "assets/httpz.svg"
  },
  "manifest_version": 2,
  "name": "HTTPZ",
  "optional_permissions": [
    "downloads"
  ],
  "options_ui": {
    "browser_style": true,
    "page": "pages/options.htm"
  },
  "page_action": {
    "browser_style": true,
    "default_icon": {
      "64": "assets/httpz.svg"
    },
    "default_popup": "pages/popup.htm",
    "default_title": "HTTPZ"
  },
  "permissions": [
    "idle",
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "version": "0.12.0"
}