Is Zebra Printing safe?

Low risk

Zebra Printing lets any web page make the extension send a POST request with a chosen body to any URL, including local network hosts.

A content script on every page listens for a 'zebra_print_label' window message without checking the sender's origin. The background script then POSTs the supplied label data to the supplied URL, which can be a printer or an internal network host, and discards the response. The content script also tells the page the extension's ID and version on load.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Daniel Nitzv1.7Firefox Add-ons
17Risk

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 1.7. 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>

  • Act on the current tab, but only after you click the extension

    activeTab

Updated 15 October 2026amo-2897782