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hacks.mozilla.org

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Site URL: hacks.mozilla.org/

Feed URL: hacks.mozilla.org/feed

Posts: 10

Followers: 3

Intent to Ship: JPEG XL

https://hacks.mozilla.org/2026/08/intent-to-ship-jpeg-xl/

Published: August 24, 2026 15:32

It isn’t often that new image formats land in browsers. In the early 2000s we had JPEG, GIF, and PNG. The 2010s gave us WebP, which was a modest step up from JPEG. But the 2020s have given us two new image formats that are a big step up from previous…

PACT: Anonymous Credentials for the Web

https://hacks.mozilla.org/2026/06/pact-anonymous-credentials-for-the-web/

Published: June 23, 2026 15:29

This is the technical companion to our update on Distilled, “Keeping the web open and private in the bot era.” Here we take a deeper look at the problem space, the design we’re proposing, and the problems still left to solve. Bots (and privacy-preserving…

Announcing Web Serial Support in Firefox

https://hacks.mozilla.org/2026/05/web-serial-support-in-firefox/

Published: May 21, 2026 18:00

Support for Web Serial in Firefox 151 for Desktop Firefox can now connect directly to microcontrollers, development boards, 3D printers, power meters, and other serial-connected hardware from the web. Starting in Firefox 151 for Desktop, support for the…

Behind the Scenes Hardening Firefox with Claude Mythos Preview

https://hacks.mozilla.org/2026/05/behind-the-scenes-hardening-firefox/

Published: May 7, 2026 16:01

Two weeks ago we announced that we had identified and fixed an unprecedented number of latent security bugs in Firefox with the help of Claude Mythos Preview and other AI models. In this post, we’ll go into more detail about how we approached this work,…

Trustworthy JavaScript for the Open Web

https://hacks.mozilla.org/2026/05/trustworthy-javascript-for-the-open-web/

Published: May 5, 2026 15:49

The open web is a critical platform for applications that handle highly sensitive data, from private communications to financial transactions and medical records. Traditionally, servers are trusted to deliver the appropriate code and resources for their…

Making WebAssembly a first-class language on the Web

https://hacks.mozilla.org/2026/02/making-webassembly-a-first-class-language-on-the-web/

Published: February 26, 2026 16:02

This post is an expanded version of a presentation I gave at the 2025 WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The first version of WebAssembly was already a great fit for low-level languages like C…

Launching Interop 2026

https://hacks.mozilla.org/2026/02/launching-interop-2026/

Published: February 12, 2026 17:07

The Interop Project is a cross-browser initiative to improve web compatibility in areas that offer the most benefit to both users and developers. The group, including Apple, Google, Igalia, Microsoft, and Mozilla, takes proposals of features that are well…