Test Cards
By: Edward Ji
Copy and prefill test card numbers and other payment methods with a single click.
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Features & Capabilities
User Growth & Download Statistics
Manifest V2 Add-on
- By:
- Edward Ji
- Daily users:
- 3
- Rating:
- 5.00 (1)
- Version:
- 1.1.2 Last updated: 2026-06-02
- Version code:
- 6288617
- Creation date:
- 2026-02-23
- Risk:
- Moderate risk impact High risk likelihood
- Permissions:
- scripting
- activeTab
- storage
- webNavigation
- https://*/*
- http://*/*
- scripting
- Size:
- 256.18KB
- Email:
- te*****@edwardji.dev
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-19
- Compare stats and ranking:
- Test Cards vs Test Payment Cards Extension
- Test Cards vs Adyen Test Cards
- Test Cards vs Payment Data Cheatsheet
Ranking
For Developers
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Publisher Change History
2026-03-29: te*****@edwardji.dev to te*****@edwardji.dev
Upgrade to see full email
Permission Change History
2026-04-10: Version 0.4.0 → 1.0.0
Remove Host permissions: https://*/* http://*/*
Add Permissions: https://*/* http://*/*
Is Test Cards 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.
Test Cards requires a few sensitive permissions. 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.
- 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.
Test Cards may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
- High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
- Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
- Good **** ********* *** **** **** *******
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