Is Metric Unit Converter & Search safe?

Low risk

Metric Unit Converter & Search replaces the default search engine with a Bing affiliate URL on install.

When installed, the extension sets Bing as the default search engine using an affiliate-tagged URL (PC=A1AM, PTAG=20231227). Every search query entered in the browser's address bar or the extension's popup is forwarded to Bing with these affiliate parameters included. The user is not informed of this change during installation.

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

Metric Unit Converterv1.0.4Firefox Add-ons
15Risk

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 1.0.4. 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 metricunitconverter.com

    https://metricunitconverter.com/*

  • Store data in your browser

    storage

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

    tabs

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

    activeTab

Where it sends data

Destinations our analysis observed Metric Unit Converter & Search 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.

  • www.bing.comwidely used

    Metric Unit Converter & Search sends data to www.bing.com. A widely used service: 29 other extensions we have analyzed send data here.

Updated 2 November 2026amo-2815082