Examine source code of Red-Block

{
  "manifest_version": 3,
  "name": "Red-Block",
  "version": "2.0.0",
  "description": "Blocks the search and content from the homepage of reddit to allow you to be locked in on what you actually want to see",
  "host_permissions": [
    "https://www.reddit.com/*"
  ],
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.reddit.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_title": "Click to view more options",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "red-block@extension.com"
    }
  }
}