







Image generated by DALL*E We’re shipping a new API in Firefox Nightly that will let you use our Firefox AI runtime to run offline machine learning tasks
Playing with AI inference in Firefox Web extensions
The personal blog of Thomas Steiner
FOSDEM 2025 - The Firefox AI Platform
Learn how the privacy-preserving local inference runtime works in Firefox Desktop, our current use cases and how to create your own features using the Experimental Web Extension API.

Firefox AI & WebExtensions
I gave an introduction to the Firefox AI runtime and WebExtensions at a French local conference this month. This article is a loose transcript of what I said.

jax-js: an ML library for the web
JAX in pure JavaScript, as a flexible machine learning library and compiler.

elements
As much as I struggle with on-device processing and the quality of its output compared to server models, I am excited by some of the APIs that are being built into browsers that are backed by LLMs and other AI inference models. For example, the prompt API, along with a multi-modal version that can take any arbitrary combination of text, image, and audio and run prompts against them. These APIs are neat but not yet web-exposed and many developers struggle to know what to do with a generic prompt. It’s not a solution that is natural to many people yet.

FOSDEM 2025 - Mozilla Builders: Working with the OSS community to build the future of AI
With AI already transforming how we use computers and the Web, Mozilla believes it's crucial that open source lead the charge. We cannot afford another Internet Explorer situation, where one or a handful of powerful corporations seize control of fundamental technology. Open source AI can and must offer a viable, competitive alternative to closed source commercial offerings.

3W for In-Browser AI: WebLLM + WASM + WebWorkers
What if AI agents could run entirely in your browser? Not just the UI part—the actual model inference, agent logic, and response generation, all happening locally without a single API call.

Building open, private AI with the Mozilla Builders Accelerator | The Mozilla Blog
AI tools are more accessible than ever. Big tech companies have made this possible, but their focus on growth and monetization prioritizes large-scale prod

AI browsing now available for early testing in Brave | Brave
Today, we're announcing the availability of Brave's new AI browsing feature for early testing. This agentic experience aims to turn the browser into a truly smart partner, automating tasks and helping people accomplish more.

Introducing Kitesurf: The agent-first browser that runs in V8 isolates on Cloudflare Workers
We should be giving all agents tools that excel at what’s important for an AI model. Kitesurf is Cloudflare’s new stateless, highly scalable, and cost-effective web browser that runs entirely on top of Workers and was designed specifically for the Agentic Cloud.

Browser AI API for Utilizing On-Device Models · Issue #178 · WICG/proposals
Introduction The Browser AI API is a proposal for a new browser feature that makes AI models accessible directly on users' devices through the browser. By offering a simple API available on the...
Web Engines Hackfest 2025
AI controls are coming to Firefox | The Mozilla Blog
AI is changing the web, and people want very different things from it. We’ve heard from many who want nothing to do with AI. We’ve also heard from