Smart Autofill

Personal project · developer · 2026

Fill a test funnel in one click.

The need
Testing a booking funnel or a payment flow means re-filling the same forms over and over: identity, address, test card. It's slow, repetitive and error-prone during QA.
My contribution
Personal project designed and built on my own, born from a daily QA need.
What was delivered
Published on Firefox Add-ons (v1.0.0), the add-on speeds up my daily QA work across missions.

What I built

An add-on designed and built on my own, to speed up daily QA.

Identities
Believable identities for 41 countries.
Gendered names, valid addresses, and multi-passenger filling with distinct, consistent profiles.
TypeScript
Test cards
Stripe test cards at hand.
A card catalog: success, 3D Secure, declines, disputes.
Stripe
Detection
Fields recognized, no checkbox ever ticked.
Semantic field detection and on-demand filling. No data is collected.
TypeScript
Add-on
Published on Firefox Add-ons.
Manifest V3 architecture, in TypeScript with Vite.
Firefox MV3 · Vite