Last updated: 29 August 2026
YouTube Thumbnail Downloader does not collect, store, transmit or sell any personal data. The extension has no server and no account. Every thumbnail you save is fetched from the public YouTube image address and written to your own computer.
| Data | What happens to it |
|---|---|
| Downloaded thumbnails | Requested from img.youtube.com, the public address YouTube serves cover images from, and written straight to your downloads folder. They are never uploaded anywhere. |
| The address of the open tab | Read only at the moment you click the extension icon, and only to pull the video id out of it. It is not stored and not transmitted. |
| Links you paste | Parsed in the panel to get the video id. Nothing is saved between sessions. |
| Browsing activity | Not read, not recorded, not transmitted. The extension has no content script and runs on no page at all. |
| Personal information | None is requested. There is no sign up, no account and no payment. |
| Permission | Reason |
|---|---|
activeTab | Read the address of the tab you are on, at the moment you click the icon, so the video id is filled in for you. It grants nothing until you click, and nothing on any other tab. |
downloads | Write the thumbnail you asked for into your downloads folder. |
The extension requests nothing beyond these two. It asks for no host permission, injects no script into any page, stores nothing, and loads no remote code.
The only outside address the extension touches is img.youtube.com, and only to fetch the picture you asked for. This website, which opens once after installation, is served by a static hosting provider and may record standard web-server information such as an IP address and a browser user agent. The page loads no fonts, scripts or images from any other domain. It carries no advertising and identifies nobody.
The extension is a general-purpose tool and is not directed at children under 13. It collects no data from anyone, of any age.
If this policy changes, the new version is published on this page with a new date at the top.
Questions about this policy: shardintoy@gmail.com