Examine source code of Copy Image Source

{
  "manifest_version": 2,
  "name": "Copy Source",
  "version": "2.0",
  "permissions": [
    "contextMenus",
    "clipboardWrite",
    "<all_urls>",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{91eb013b-2197-4595-86b3-8f84cf1083e9}"
    }
  }
}