Cat moving in & out of screen

Brown adult kitten funny moving in and out of screen with dark background as looking for other cat or meal, hunting for bird, mouse.

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Cat moving in & out of screen",
  "description": "Brown adult kitten funny moving in and out of screen with dark background as looking for other cat or meal, hunting for bird, mouse.",
  "author": "José María Acuña Morgado",
  "version": "1.30",
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_title": "Cat moving in & out of screen.",
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "64": "icon64.png",
    "128": "icon.png",
    "256": "icon256.png"
  },
  "manifest_version": 2
}