Examine source code of WorldServer Enhancer

{
  "manifest_version": 2,
  "name": "WorldServer Enhancer",
  "version": "1.1",
  "description": "Enhances WorldServer Browser Workbench on Firefox: fixes scrolling with a sticky header, resizes Workbench/Concordance/TM Match windows independently, freezes Concordance on segment change, and enables Enter key search.",
  "browser_specific_settings": {
    "gecko": {
      "id": "worldserver-enhancer-personal@ws01",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "*://ws01.apple.com/*",
    "*://*.worldserver.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://ws01.apple.com/*",
        "*://*.worldserver.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "WorldServer Enhancer",
    "default_icon": {
      "48": "icon.svg"
    }
  }
}