Examine source code of EngineerSR

{
  "description": "Add a browser action icon to the toolbar. Click the button to search engineer's SR by email address.",
  "manifest_version": 2,
  "name": "EngineerSR",
  "version": "0.0.30.1resigned1",
  "homepage_url": "https://addons.mozilla.org/zh-CN/developers/addon/engineersr/",
  "icons": {
    "48": "icons/beasts-48.png"
  },
  "omnibox": {
    "keyword": "paste"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "alarms",
    "tabs",
    "activeTab",
    "webRequest",
    "https://*/",
    "contextMenus",
    "notifications",
    "<all_urls>",
    "clipboardRead",
    "clipboardWrite",
    "storage",
    "downloads"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://support.us.oracle.com/*",
        "https://fleetmanager.oraclecloud.com/*"
      ],
      "js": [
        "GetInfoFromParentSR.js",
        "SetInfoToCollabSR.js",
        "P2T.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_icon": "icons/beasts-48.png",
    "default_title": "EngineerSR",
    "default_popup": "popup/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@engineersr"
    }
  }
}