Examine source code of ForceDownloadFixByAlex

{
  "manifest_version": 2,
  "name": "ForceDownload Fix",
  "version": "1.0",
  "description": "Replaces force_download=1 with force_download=0 in all requests.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "forcedownloadfix@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_personal_data": false,
        "collects_sensitive_data": false,
        "collects_browsing_data": false
      }
    }
  }
}