# Convertigo

> Automatically detects measurements and currencies on any page and shows conversions via hover popups, text selection or hold-a-key to replace all values in place. Supports distance, weight, volume, temperature, speed, fuel efficiency, and currencies.

Canonical page: [https://chrome-stats.com/d/convertigo](https://chrome-stats.com/d/convertigo)

## Overview

- **ID:** `convertigo`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Anthony
- **Category:** other
- **Daily users:** 2
- **Weekly downloads:** 2
- **Version:** 1.1.18
- **Last updated:** 2026-07-11
- **First published:** 2026-03-09
- **Size:** 45 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/convertigo/)

## Description

Convertigo automatically scans every page you visit for measurements and currencies, highlighting detected values with a subtle underline. Hover over any highlight to see its conversion in a popup, or hold a key (Alt, Ctrl, or Shift) to instantly replace every detected value on the page with its conversion at once.

You can also select any text containing measurements or currency amounts and a popup appears in the corner with all detected conversions.

<strong>Supported units:</strong>
- <strong>Distance</strong>: mm, cm, m, km, inches, feet, yards, miles
- <strong>Weight</strong>: mg, g, kg, oz, lb, ton
- <strong>Volume</strong>: tsp, tbsp, cups, pints, quarts, gallons, barrels, ml, L
- <strong>Temperature</strong>: °C, °F, Kelvin
- <strong>Speed</strong>: km/h, mph, m/s, knots
- <strong>Fuel efficiency</strong>: MPG, L/100km, km/L
- <strong>Currencies</strong>: 30+ currencies with daily exchange rates

Handles fractions ("1/2 inch"), mixed numbers ("1 1/2 cups"), dimension strings ("6x4ft"), ranges ("5-10 km"), and ambiguous units like oz (shows both mass and fluid). Results auto-downscale when appropriate for example 0.5 kg displays as 500 g.

Configure your preferred unit system, temperature scale, target currency, and more from the settings popup. Units already in your preferred system are skipped so you only see what's useful.

## Rankings

- #64,627 — Overall
- #47 — temperature
- #113 — bigo

## Permissions and access

### Permissions

- `storage`
- `menus`
- `tabs`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/convertigo)