Is Currency Converter safe?

Clean risk

This extension provides currency conversion in Firefox.

This is a Firefox port of the Chrome extension “Currency Converter” originally by Mattia Maestrini. Its manifest allows it to connect to open.er-api.com, which is consistent with retrieving exchange-rate data for currency conversion.

LiabilityManFirefox Add-ons
0Risk

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

Publishers can request a review.

Where it sends data

Destinations our analysis observed Currency Converter 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.

  • open.er-api.com

    Currency Converter sends data to open.er-api.com. No other extension we have analysed sends data here.

Updated 15 October 2026amo-992185