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Sandbox Pay version history - 1 version

Sandbox Pay by David Nguyen

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Sandbox Pay version history - 1 version

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 1.0.0

    Released Apr 1, 2026 - 274.31 KB
    Works with firefox 109.0a1 and later
    A browser extension for developers to quickly generate and auto-fill test card data when working with PayPal Sandbox and Stripe Test environments.

    Features
    PayPal Sandbox cards — Generate random valid test cards (Visa, Mastercard, Amex, Diners, Maestro, CUP, JCB) with Luhn-valid numbers
    PayPal error triggers — One-click fill for PayPal-specific error codes (CCREJECT-REFUSED, CCREJECT-SF, etc.)
    Stripe test cards — Full list of Stripe test cards categorized by Success, Decline, and 3DS
    Auto-fill — Automatically fills card number, expiry, CVV, cardholder name, and country into payment forms
    Context menu — Right-click on any input field to fill card data directly
    Customizable settings — Set default country, cardholder name, and card background images
    i18n — Supports English and Vietnamese
    Supported Sites
    The auto-fill content script runs on:

    .paypal.com
    .sandbox.paypal.com
    .stripe.com
    localhost / 127.0.0.1
    .appspot.com

    Source code released under MIT License

    Download Firefox and get the extension
    Download file