Examine source code of TrackBlock

{
  "manifest_version": 2,
  "name": "TrackBlock",
  "description": "Blocks tracking IDs from URLs (fbclid, utm_*, etc.), by-passes tracking redirects",
  "version": "0.1.6",
  "developer": {
    "name": "Jelinek SW",
    "url": "https://gitlab.com/jelineksw/webext-trackblock"
  },
  "icons": {
    "48": "icon/trackblock.svg",
    "96": "icon/trackblock.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dbb7f803-f437-48e6-b15c-a126890af043}"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background/trackblock.js"
    ]
  }
}