Is Apia digital signature safe?

Low risk

Apia digital signature lets matching webpages send local signing data to its native signing host.

When a webpage URL contains firefoxSignature.jsp, the extension reads that page's localStorage dataToSign value and sends it to the Apia native signing application. The background script forwards the page-provided signing parameters through Firefox native messaging without checking the sender origin.

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

Statumv1.6Firefox 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 1.6. 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 developer.mozilla.org

    *://developer.mozilla.org/*

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

    activeTab

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

    nativeMessaging

Where it sends data

Destinations our analysis observed Apia digital signature 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.apia.sign.firefox

    Apia digital signature sends data to com.apia.sign.firefox. No other extension we have analysed sends data here.

Updated 30 September 2026amo-766656