Is BitComet Download Extension safe?

Clean risk

BitComet Download Extension sends download URLs, referrers, and cookies from HTTP(S) pages to the BitComet native host.

When you click a matching download link or choose Download with BitComet, the extension forwards the download URL along with the current page URL or referrer and related cookies. That data is sent through Firefox native messaging to the local BitComet native host.

bitcomet.comv1.91.0Firefox Add-ons
3Risk
Who publishes it

bitcomet.com - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
bitcomet.com

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 1.91.0. 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

    http://*/*

  • Read and change your data on every secure site you visit

    https://*/*

  • Add items to the right-click menu

    contextMenus

  • Read and change cookies, including the ones that keep you signed in

    cookies

  • Talk to a program installed on your computer, outside the browser's sandbox

    nativeMessaging

  • Start, monitor and manage your downloads

    downloads

  • Show you desktop notifications

    notifications

  • Store data in your browser

    storage

  • Schedule its own background tasks

    alarms

Where it sends data

Destinations our analysis observed BitComet Download Extension contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • com.bitcomet.firefox_extension

    BitComet Download Extension sends data to com.bitcomet.firefox_extension. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2756089