Metrication

Name: Metrication
Rating: 3.6364 (11 reviews)
Author: DeltaMikeCharlie

Helps users of the metric system by converting and replacing Imperial and US units of measure with metric (SI) units directly within a web page. A hotspot will popup with the original value, conversion workings and potential ambiguities.

Download

Install

Features & Capabilities

Metrication is a Firefox add-on designed for users who prefer the metric system. It automatically identifies Imperial and US customary units on web pages and replaces them with equivalent metric (SI) units, making texts easier to understand for metric audiences.

The extension offers detailed pop-up hotspots that reveal the original value, detailed conversion calculations, possible alternate conversions, and explanations of ambiguities. It recognizes both full and abbreviated unit forms and intelligently scales units and decimal precision based on magnitude to offer practical metric equivalents. Advanced features include handling compound units (like "miles per gallon") and compound values (such as "5 feet 11¾ inches") by providing meaningful metric conversions.

Metrication also accounts for cultural differences in units such as gallons and addresses ambiguities with units like ounces by providing context-aware alternatives. Users can view alternate conversions or revert to the original text as needed. This tool is ideal for readers and professionals seeking accurate, context-sensitive metric conversions directly within their browsing experience.

User Growth & Download Statistics

Add-on Education

By:

Daily users:

Rating:

Version:

0.0.7 Last updated: 2019-04-27

Version code:

3211032

Creation date:

2019-03-02

Risk:

Permissions:

<all_urls>
clipboardWrite
tabs
menus
storage

Content scripts matches:

<all_urls>

Size:

140.13KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 11,889 ▲ 540

Other rankings

#54 in location keyword 37 ▲ 2

#62 in value keyword 23 ▲ 1

#75 in united keyword 25 ▲ 19

#96 in education keyword 11 ▲ 5

#101 in catalog keyword 7 ▲ 5

Upgrade to see more rankings

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

DeltaMikeCharlie

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/metrication/

Website:

http://deltamikecharlie.yolasite.com/metrication.php

User Reviews

by 天灭*****, 2025-03-28

by 敬念*****, 2025-02-18

Didn't work for Fahrenheit on allthatsinteresting.com/yakutsk

by xe*****, 2024-12-16

View all user reviews ›

Is Metrication Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Metrication requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Critical ****** ****** ** ******* ***** ***** *** ** **** ** ***** **** ******** ****** *** ******** ********** * ******* ********
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Metrication has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******