Examine source code of RemoveMaj

{
  "manifest_version": 2,
  "name": "RemoveMaj",
  "version": "1.3",
  "description": "Enlève les majuscules",
  "permissions": [
    "activeTab",
    "contextMenus",
    "scripting",
    "tabs",
    "clipboardRead"
  ],
  "background": {
    "scripts": [
      "script.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ebc8aae2-7276-4979-b9bd-a876dc8201d2}"
    }
  }
}