# testcard

> colour & greyscale bands as used in TV testcards.

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

## Overview

- **ID:** `testcard`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed (abandoned)
- **Publisher:** deloreanmonkey
- **Version:** 2.0
- **Last updated:** 2019-05-13
- **First published:** 2009-04-17
- **Size:** 11 KB
- **Data as of:** 2026-08-04
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/testcard/)

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Very high risk likelihood

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension is not longer available in the store

> 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/testcard)