Happening tomorrow at Mozilla Berlin! 🚨 🎤 Talk on Firefox Mobile and open source contributions 🗺️ Firefox Roadmap & upcoming features 🤝 Networking 🎟️ Raffle 🗓️ Apr 28 // 18:00 // Schlesisches Tor RSVP now! 👇 www.meetup.com/berlin-mozi...

MDN's old frontend had: ejected Create React App, a Webpack config nobody wanted to touch, CSS so entangled fixing one component broke others, and dangerouslySetInnerHTML as a core pattern. So the team rebuilt it from scratch. Deep dive worth reading 👀 developer.mozilla.org/en-US/blog/...

Something exciting is happening in Berlin on Tuesday 👀 We're hosting a community meetup at the Mozilla Office - talks, Q&A, networking, and a raffle with the Firefox iOS Team. 💟 🗓️ April 28 // 18:00-21:00 RSVP 👇 www.meetup.com/berlin-mozi...

We just published a deep dive into how we rebuilt @MozDevNet's entire frontend. And I'm so proud of what the team shipped. ♥️ developer.mozilla.org/en-US/blog/...

Stumbled on git-pulse's snapshot rankings and had to look up mdn/content. ✨ 4th in new committers per month (49) ✨ 5th in new committer percentage (48%) ✨ 5,009 total contributors For a documentation repo, that's wild. And we are actively growing. git-pulse.github.io/snapshots/

David Cramer wrote something that clarified a lot of the noise for me around MCP, skills, and agents. The key insight: these aren't competing ideas. They each solve different problems.

As AI does more of the work, what matters most: Asking better questions. Not just what it returned. But whether you asked the right thing. That skill gets rusty if you stop practicing it. - Addy Osmani on critical thinking in the AI age

Spent last night at MCP Connect Berlin. People are now actively building MCP servers - not just exploring the idea.

The Linux Foundation just released their 2025 Europe Open Source report and one finding caught my attention. European companies are using open source everywhere. But most don't have formal strategies or Open Source Program Offices.

Mozilla Foundation just opened applications for something I'm genuinely excited about. The Democracy x AI Cohort. 10 projects. $50k each. 12 months of support. But here's what makes this different: They're not funding ideas. They're funding working prototypes that are already being used.

Anthropic tested 52 developers learning a new Python library. Half used AI assistance, half coded by hand. The result? AI users scored 17% lower on post-task quizzes. That's nearly two letter grades. The biggest performance gap wasn't in basic recall. It was in debugging.

Moderated a panel at FOSDEM with browser folks from Mozilla, Google, Opera, and Microsoft. We talked about where browsers are headed in 2026 and how developers can actually influence what gets built. Recording is up: fosdem.org/2026/schedu...

Last night's Mozilla meetup in Berlin was incredible! 🎉 Over 60 people, pizza, and amazing talks on Firefox anti-tracking and in-browser AI with WebLLM/WASM. Playing host to such an engaged crowd was a blast. ❤️ If you'd like to give a talk on the web topics, reach out! 🦊

Lola Odelola's talk asks a simple question: "What do you see?" It's about centering screen-reader users and treating alt-text as a creative medium, not just a compliance task. Accessibility doesn't limit artistry. It expands it for everyone. Worth your time: heypresents.com/talks/what-...

@oxide.computer published a really thoughtful framework on using LLMs at work. No bans or mandates. Just five clear values: Responsibility, Rigor, Empathy, Teamwork, Urgency. They're specific about what works and what doesn't. Responsible AI adoption ↓ rfd.shared.oxide.computer/rfd/0576

The Mozilla meetup is coming back to our lovely Berlin office! 🎉 Haven't been yet? Come join us THIS THURSDAY for some really cool tech talks on browser privacy and offline LLMs using WASM 🦊

@mozilla.org is launching Mozilla Pioneers: a paid program for technologists and builders shaping the next web. What makes it different? → Flexible scheduling → Time-bounded commitment → No career gambling required Applications close Feb 16 🔐 blog.mozilla.org/en/mozilla-...

this is a gentle reminder to go out on a walk. 🚶 no strategy, no learnings here, just walk. get your body moving. blood flowing. kbye.

I built something silly for Valentine's Day 💙 Your valentine can try saying "No," but the button runs away. Eventually, they have no choice but to say yes. 😆 Is it practical? No. Is it fun? Absolutely. Try it (or send it to your valentine): valentine.pran.sh

Interop 2026 is here! 🌐 Apple, Google, Igalia, Microsoft, and Mozilla are tackling 20 new focus areas in 2026! The part I love? MDN documents every single one with clear examples and browser support data. Read what's in focus: hacks.mozilla.org/2026/02/lau...

AI with an actual off switch just dropped in @firefox.com 148. You get to choose: → Which AI features you want → Or turn it all off entirely While other browsers decide for you, we're giving you the controls. Your browser, your rules. blog.mozilla.org/en/firefox/...

Last weekend at FOSDEM, I had the privilege of moderating a panel that brought together folks from Google, Mozilla, Opera, and Microsoft to discuss browser priorities from a developer's perspective.

10h35 – Présentation : Kick Off de navigateur et plate-forme Web devroom, par Sylvestre Ledru, Pranshu Khanna, Benoit Chauvet – H Building – Salle H.1309 (Van Rijn) –  #FOSDEM2026 @fosdem.org  @firefox.com  @sylvestreledru.bsky.social  @pran.sh

Browsers in 2026 - where are we headed? 👀 I'm moderating an awesome panel at FOSDEM26 with folks from Opera, Mozilla, Google, and Microsoft to talk about the future of browsers and web platform. 🗓️ Jan 31 · 14:30 📍 Room H.1309 (Van Rijn) Session 👇 fosdem.org/2026/schedu...

There’s been so much going on that I completely forgot to share — I’m helping organize a Devroom at FOSDEM this year! 🎉 Schedule: fosdem.org/2026/schedu...

Ever wish HTTP status codes were easier to remember? 🖼️ Check out this MDN cheatsheet that pairs each status code with an emoji to help you visualize what each one means, from 200 OK ✅ to 418 I’m a teapot 🫖 Check it out 👇

Which image format really gives you the best balance between speed, size, and quality? 🤔 In this hands-on MDN post, Polina Gurtovaia runs real compression experiments (AVIF vs. JPEG 🐿️) and breaks down how to pick the right codec for your workflow. developer.mozilla.org/en-US/blog/...

I’m excited about this! Firefox leadership is doing an AMA on r/firefox 🔥 If you didn’t know, r/firefox is a long-standing, independently run Reddit community that’s been around since 2008, and still gets nearly half a million weekly visitors.

I’ve been playing FIFA since ‘08. Built a startup on top of FIFA 17-19. Sweated through Weekend Leagues. And now… my favorite browser is in the new FIFA. Firefox branding just landed in EA SPORTS FC™ 26 ⚽🧡 Big win for the team, and a personal full-circle moment.

The Mozilla Support platform (aka SUMO) gets 20M+ visits a month — it’s where Firefox users go when they need help, guidance, or just a little browser magic. But SUMO isn’t just docs. It’s a global community. And now, it’s your turn to jump in!

Got mail 📬 The awesome folks at @fiberplane and @Cloudflare sent over this sticker sheet + a super kind note after I joined VibeSummer and built an MCP using their codegen tool 💥 Challenge 1 was 🔥 Their DX made it really fun. Wanna see what I built? 👀

Ever wanted to stream data into a fetch() request? We’re exploring better support for using ReadableStream as a request body, and we’d love your input. It’s a quick 1–2 min survey, and your feedback could shape what browsers prioritize next 👇 survey.alchemer.com/s3/8460326/...

I’m joining The UX Show for Ep. 4 — streaming October 14! 🎙 We’ll talk about: → MDN Fred 💙 → Open source & contribution models → UX at the core of web dev 📍 Live on YT (@GDGSpain) & Google Dev Discord 🕑 2:00 PM UTC Come hang out! Hosted by Yash, Giga, Victor & Andreu 🙌

Have thoughts on using ReadableStream as a request body in fetch()? We're running a quick survey (1–2 mins) to gauge interest, it'll help shape what browser folks prioritize next. If you care about streaming uploads or fetch, this is for you 👇 survey.alchemer.com/s3/8460326/...

Web devs, hear me out! 👋 We're running a short survey (1–2 min) to understand interest in using ReadableStream as a request body in the Fetch API. Please help us guide implementation priorities, especially around support & use cases. Survey here 👇 survey.alchemer.com/s3/8460326/...

This chart is wild. GitHub Copilot is doing $800M in revenue, more than the next 3 combined. But what really stands out to me is how many niche startups are in the mix. We're watching the category go from novelty → infrastructure. Lovable. Poolside. Tabby. Sourcegraph. Relicx.

Interop 2026 is open for proposals! 🧪 If there’s a feature that’s already standardized and well-tested; but still feels like a gamble across browsers — this is your moment. Help shape the priorities for the next year of browser work. File a proposal 👇 github.com/web-platfor...

One of the biggest lessons from the modern internet: Depth > reach Community > audience Whether you're running a product, project, or publication. The stuff that lasts is built with people, not just for them.

I was listening to the latest Vergecast episode on my way to work with the creators of Cracking the Cryptic, and I can’t stop thinking about it. Two middle-aged puzzle lovers. A YouTube channel solving Sudoku variants. Now? A thriving, kind, 40,000+ strong community on Discord.

I've got a bunch of lovely folks in my DMs asking this, and what to cover, so I figured I'll share what does a GitHub Work Week actually look like? 🧵

Every 6 months, I run a GitHub Work Week with my community, and it’s honestly one of the best things we do. We close stale issues, PRs, docs, and rethink our community experience. I like to call it “community debt” — the invisible stuff that piles up while you're busy building.

You still have time, The State of HTML 2025 survey is live. Browser vendors use this data to prioritize features, fix incompatibilities. Standards bodies use it too. It’s not just a survey, it’s influence. Take 10 minutes. Share what you care about. 👇 stateofhtml.com/en-US

Being vulnerable on social media is hard for me. Maybe it’s the age I grew up in. Maybe it’s my privacy-focused brain. Or maybe it’s the simple fact that on these platforms, we are the product.

Honestly can’t stop smiling at the love we’ve received for the new @developer.mozilla.org frontend 💜 This was a huge rebuild, and seeing devs notice the details makes it all worth it. Thanks for exploring, sharing, and cheering us on 🙌 More on the way 📈 ICYMI ↓ developer.mozilla.org/

Firefox 142 just dropped, what's new ↓ ✅ Full support for the URL Pattern API ✅ Big DOM wins like Selection.getComposedRanges() and Animation.overallProgress ✅ Updates to WebRTC stats, task scheduling, and WebDriver BiDi ✨ and more... Dive deeper 👇 developer.mozilla.org/en-US/docs/...

Introducing a brand-new frontend for MDN, reengineered from the ground up 🎉 Modern CSS, web components, better typography, new icons, and a new search experience. Everything's been rebuilt with care for usability, performance, and dev needs. Explore 👇 developer.mozilla.org/en-US/blog/...

Search from anywhere. Navigate like never before. 🧭 The new MDN front end comes with a new search modal, refreshed UI, and better typography for docs that feel as good as they read. Take a look 👇 developer.mozilla.org/en-US/blog/...

Illinois is launching a first-of-its-kind legal hotline for LGBTQ+ individuals — Illinois Pride Connect. As the only state in the nation that will provide free legal advice to protect the LGBTQ+ community, we'll help fight ignorance with information and cruelty with compassion.

Gecko: Intent to ship web apps in Firefox for Windows

Football is back! ♥️