manifest.json

{
    "manifest_version": 3,
    "name": "yt-thumbs-&-shorts-blocker",
    "version": "1.0.0",
    "description": "block thumbnails & shorts on yt for a distraction free browsing & improve bandwidth",
    "icons": {
        "16": "icons/icon16.png",
        "32": "icons/icon32.png",
        "48": "icons/icon48.png",
        "128": "icons/icon128.png"
    },
    "content_scripts": [
        {
            "js": [
                "content-script.js"
            ],
            "matches": [
                "http://www.youtube.com/*",
                "https://www.youtube.com/*"
            ]
        }
    ],
    "declarative_net_request" : {
      "rule_resources" : [{
        "id": "ruleset_1",
        "enabled": true,
        "path": "rules_1.json"
      }
    ]
    },
    "permissions": [
      "declarativeNetRequest",
      "declarativeNetRequestFeedback"
    ]
}