Is Media Resource Downloader Private? What It Sends and Where

The problem

A downloader sits on every site you visit, including banking and email. You should be able to find out in a minute what it can see and what leaves your machine.

What stays on your computer

• The scan: found URLs, names and sizes pass from the page to the extension’s window locally.
• Previews, the viewer and the player load directly from the site that hosts the files.
• Downloads go through Chrome’s own downloader. ZIP files are built in the browser.
• Settings and Pro status are kept in the extension’s own storage.

What goes to a server

One thing: the licence check. When you activate Pro, and about every three days afterwards, the extension sends your licence code to license.mzjpg.com to confirm it’s valid. It sends no page address, file list or personal data. With no licence entered, nothing is checked.

Besides that, the extension makes two kinds of requests to the files you’re looking at: a header-only request to read a file’s size, and, for ZIP, a fetch of the files you selected. Both go to the website that hosts the file, not to us.

What it does not do

No accounts, no analytics, no advertising, no remote code. Nothing is uploaded to us.

How to verify

Look at the extension’s permissions on its Web Store page and at chrome://extensions/, or open the service worker’s DevTools and watch the Network tab while you scan: you’ll see no request to us.

Details are in the privacy policy.

FAQ

Does it send the pages I visit to you? No. The page scan result goes from the page to the extension on your computer. Nothing is uploaded.

What does the licence check send? Only the licence code you entered, to license.mzjpg.com, when you activate and about every three days.

What is stored locally? Settings (language, theme, filters, auto-refresh), your Pro status and licence code, kept in Chrome’s extension storage.

Why does it have access to all sites? To scan the page you open. It only reads the page when you click the icon.