Examine source code of Redirect me!

{
  "name": "Redirect me!",
  "description": "Allows you to navigate from Gitlab to an Odoo website, to check the current task.",
  "version": "1.0",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "javimalak@gmail.com",
      "strict_min_version": "88.0"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "menus",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://git.vauxoo.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "32": "/icon32.png",
    "48": "/icon48.png",
    "128": "/icon128.png"
  }
}