Browser Extension & Productivity

AutoFill Pro
Firefox Add-On

A modern, privacy-focused Firefox extension for intelligent web-form automation using advanced matching algorithms and local data storage.

01 Architecture & Security

As the **Lead Developer**, I architected the extension for Manifest V3, focusing on performance, cross-browser compatibility, and robust security.

  • ✔ **MV3 Architecture**: Implemented a scalable messaging system between background service workers, content scripts, and page configurations.
  • ✔ **Smart Matching Engine**: Developed an algorithm that identifies fields using on-the-fly analysis of IDs, names, placeholders, and ARIA labels.
  • ✔ **Security First**: Replaced all dynamic rendering with safe DOM manipulations (createElement, textContent) to completely eliminate XSS risks.
  • ✔ **Privacy Core**: Built a local-only storage system using `chrome.storage.local` to ensure user data remains isolated and secure.

02 Key Features

Algorithm Smart Matching

Identifies fields not only by ID, but also via placeholders, labels, and customizable keyword lists.

Secure UI (Vite/TS)

Built with TypeScript for type safety and Vite for optimized, high-performance builds.

Privacy-First Design

Zero external data transfer. All input data is stored locally in the browser's isolated storage.

System Integration

Interface utilizes Firefox System Colors to seamlessly match the browser's native theme (Dark/Light).

Technologies

TypeScript Vite / esbuild Manifest V3 WebExtension API Native CSS
Firefox
Official Add-On

Passed Mozilla's "web-ext lint" validation with zero errors. Optimized for Gecko engine specifications.