Is Multithreaded Download Manager safe?

Clean risk

Multithreaded Download Manager reads web response details to identify downloadable files.

When download monitoring is enabled, the extension checks HTTP and HTTPS page responses for file-related details such as the URL, referrer, content type, content length, content disposition, and range support. It uses this information to create a local download task or open its edit dialog, and the confirmed claim does not show the data being sent to a remote endpoint.

jingyu9575v3.2b8Firefox Add-ons
3Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.2b8. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Start, monitor and manage your downloads

    downloads

  • Open files you have downloaded

    downloads.open

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

  • Read whatever you have copied to your clipboard

    clipboardRead

  • Write to your clipboard

    clipboardWrite

  • Show you desktop notifications

    notifications

  • See the address and title of every tab you have open

    tabs

menusmenus.overrideContext
Updated 30 September 2026amo-887769