Examine source code of WTW Document Feedback

{
  "manifest_version": 2,
  "name": "WTW Document Feedback",
  "version": "1.1",
  "description": "Firefox version of WTW Document Feedback extension",
  "permissions": [
    "https://northamerica-northeast1-waivethewait.cloudfunctions.net/*",
    "https://*.kai-oscar.com/*",
    "https://*.secure.junoemr.com/*",
    "https://*.openosp.ca/*",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "icons/WaiveTheWait 16.png",
    "32": "icons/WaiveTheWait 32.png",
    "64": "icons/WaiveTheWait 64.png",
    "128": "icons/WaiveTheWait 128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.kai-oscar.com/*",
        "https://*.secure.junoemr.com/*",
        "https://*.openosp.ca/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "WTW Document Feedback",
    "default_icon": {
      "16": "icons/WaiveTheWait 16.png",
      "32": "icons/WaiveTheWait 32.png"
    }
  },
  "applications": {
    "gecko": {
      "id": "wtw-document-feedback@waivethewait.com",
      "strict_min_version": "58.0"
    }
  }
}