Harald Kirschner

Visual Studio Code

Swiff meets Ajax for powerful and elegant uploads (MooTools Plugin).

Sly is a turbocharged, cross-browser, library-agnostic JavaScript class for querying DOM documents using CSS3 selectors.

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Gives VS Code agent mode planning superpowers with dynamic todo lists

Real-time command-line memory monitor for Firefox OS devices.

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Command-line tools to install packaged and hosted apps using the Firefox OS remote debugging protocols.

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Flash Firefox OS devices from public Mozilla builds.

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Tactile PDF.js reader

Cross-platform, low-garbage entity/component JavaScript game framework

RedRacer is a web-based source code repository, aggregating open source community-contributions. THIS SOURCE IS OUTDATED, VISIT readracer.org!

Tyke is fork of Nice Dog, a nano web framework for PHP, like web.py for Python, Sinatra or Camping for Ruby

State-of-the-art repository crawler and dependency manager.

Loop: A meta-loop orchestrator for multi-agent Copilot workflows with self-correction, stall detection, and shared memory

Open external links in a new window when your web app runs in a chromeless runtime. Useful for Firefox OS and iOS web apps! Created and tested in Firefox.

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Tune any instrument on any device

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vector drawing for buttons, icons, widgets and all that stuff

projects from digitarald.de

Copy from anywhere. Paste clean Markdown. Zero config.

Best practices and feasability prototypes around playing back packaged/encrypted audio in HTML5

History Management via popstate or hashchange.

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MooTools Plugins and Enhancements Repository

Firefox OS Flashlight App

State-based touch input manager for games and high-fidelity interfaces

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12 weeks, 24 lessons, classic Machine Learning for all

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MooTools History Native providing the hashchange event and History Route for application-wide state management.

Using mozTcpSocket's listen()/open() to create a simple server/client.

WebRT Stub Executable Builder for Android

Clone repositories to your disk right from the GitHub website.

`performance.mark` for page load milestones, interactions and beyond.

[svn-mirror latest tag] Agavi is a powerful, scalable PHP5 application framework that follows the MVC paradigm. It enables developers to write clean, maintainable and extensible code. Agavi puts choice and freedom over limiting conventions, and focuses on sustained quality rather than short-sighted decisions.

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Your Copilot Chat history, made searchable and queryable.

VS Code Chat Logs/Export Viewer

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Capture your screen to a GIF in your browser

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knot.io pages

Multitasking experiment.

Speed / Validity test for css dom queries in JavaScript web Frameworks.

*** Repository Moved *** http://github.com/digitarald/redracer

Bug test case

about:device: X-Ray for your app run-time.

Unofficial import of Mozilla's mozilla-central hg repository using hg-git

Sync working branch. `master` in this repository is stable, and tracks https://hg.mozilla.org/services/services-central. Other branches are owned by developers, and are subject to change.

A math library for JavaScript

The source of the apps.mozillalabs.com website

This AutoCompleter script for MooTools provides the functionality for text suggestion and completion. It features different data-sources (local, JSON or XML), a variety of user interactions, custom formatting, multiple selection, animations and much more.

A new take on John Resig's TestSwarm

A node.js game-saving server which authenticates via browserId.

Get your repo ready for AI.

My clone repository

A Model Context Protocol (MCP) server that provides Xcode-related tools for integration with AI assistants and other MCP clients.

AGENTS.md — a simple, open format for guiding coding agents

Chrome DevTools for coding agents

Vibe coding a full-stack Next.js app with multi-tenancy.

I know how to find the right answer from https://developer.apple.com

A collection of MCP clients.

UI for SPS

Playwright Tools for MCP

The documentation and specification for the Model Context Protocol (MCP)

Distribute 2 Gecko

The Cat Said No, NodeJS version

Please Sing Inside Your Heart ❤️

Works best in Firefox DevTools™ 😉

The useful and unobtrusive Lightbox plugin for MooTools that doesn't suck.

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Slow Crypto Math

Web Apps Next As-An-Addon

Persona in packaged Firefox apps, using a remote iframe and postMessage.

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Specifications for Mozilla's Identity Effort

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Working space for Apps in the Cloud. Because Mercurial.

VS Code feature announcement videos built with Remotion

Agent Host Protocol CLI — manage AHP server connections, sessions, and agent interactions

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Published presentation slides

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Specification and documentation for Agent Skills

VS Code plugin which copies the selected markdown text to the clipboard as HTML

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Excalidraw for Visual Studio Code

Your trusted home for discovering MCP tools – seamlessly integrated into Docker

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Context7 MCP Server -- Up-to-date documentation for LLMs and AI code editors

Specification and documentation for the Model Context Protocol

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Just some code samples Martin uses for running demos

My Dotfiles

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Experiment

Created with CodeSandbox

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GitHub Code Scanning Javascript Tutorial

[CVPR 2022] Thin-Plate Spline Motion Model for Image Animation.

TensorFlow examples

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Chrome extension that records your browser interactions and generates a Playwright or Puppeteer script.

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HelloWorld in C / C++ with VSCode (WSL, Container and SSH) and Gitpod

Official repository for the Microsoft C/C++ extension for VS Code.

VS Code extensions for Java developers.

Python extension for Visual Studio Code

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Sample code for the Django tutorial in the VS Code documentation

Sample code for the Flask tutorial in the VS Code documentation

Theming demo for Firefox Quantum and beyond

Sample Django+React+Postgres application for use in Visual Studio Code and Azure

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Sample code illustrating the VS Code extension API.

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:rocket: A fully-featured, production ready caching GraphQL client for every UI framework and GraphQL server

Headless Chrome Node API

Debug your JavaScript code running in Google Chrome from VS Code.

Read-only Git mirror of the Mercurial gecko repositories at https://hg.mozilla.org. How to contribute: http://bit.ly/contribute-code

An extension that allows inspection of React component hierarchy in the Chrome and Firefox Developer Tools.

Works best in Firefox DevTools™ 😉

🖖 A progressive, incrementally-adoptable JavaScript framework for building UI on the web.

Works best in Firefox DevTools™ 😉

React boilerplate written in Typescript.

A modular minifier, built on top of the PostCSS ecosystem.

Source code for

Notes for #PerfMatters 2018 conference

Lectures and exercises for React Training workshops

The Firefox debugger that works anywhere :boom:

A web-based guitar tuner

AreWeFastYet is a set of tools used for benchmarking the major browser's JavaScript virtual machines against each other, as well as reporting the results on a website as insightful graphs showing the evolution of performance over time.

for fast flashing images to devices

a packaged app stub that checks for an update

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Install at your own risk to profile page load performance

Experiments in analyzing platform profiles in bulk

A Framework for testing web performance between different browser

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Official repository for WebPagetest

Web Audio API-powered voice changer and visualizer - this is exactly the same as https://github.com/mdn/voice-change-o-matic, except that it uses float32Array data in the visualizations, not Uint8Array (unsigned byte) data.

A fully pluggable tool for identifying and reporting on patterns in JavaScript.

Graded Feature Support: Look up web technologies and find out if they are ready for use.

Offline web app for a musique concrete choir

Async storage for add-ons based on localForage

A small, simple event (and delegate event) binding library.

Playground.js is a framework for your javascript based games. It gives you out-of-box access to essentials like mouse, keyboard, sound and well designed architecture that you can expand to your needs.

Pushing web performance by tracking performance issues

Firefox OS Remote Developer Hud (Firewatch 2)

A packaged app wrapper for Firefox OS

WIP Web Platform Status

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toggles the mozTCPSocket and mozContacts APIs for web pages in Firefox

Fire, Hot!

Do's and don't for memory use in the open web

Small library to parse file listings into JavaScript objects

Getting started with HTML5 games and Construct 2

Notes App for FirefoxOS

Node.js remote debugging client for Firefox

Tara does reports

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An experiment to see if we can get a bunch of people to send pull requests about what open source means to them

Example Firefox OS Push Notifications

MozCampAsia 2012 - Apps Dissected

Gaia is a HTML5-based Phone UI for the Boot 2 Gecko Project. NOTE: For details of what branches are used for what releases, see https://wiki.mozilla.org/Release_Management/B2G_Landing

IRC client for FxOS

A set of small sample apps, each of which demonstrates features of Firefox OS in isolation

Resurrection of the calculator app that was pulled from gaia

Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone.

Demos, examples and other gems around Firefox OS and the Firefox apps ecosystem

Push to Gecko - A SimplePush story

Creating Firefox OS apps

The GitHub Game Off 2012 is game jam / hackathon / coding challenge to create and open source a web-based game