Mozilla Blog

Chrome and Opera Optimize for Mozilla-Pioneered Asm.js

Browsers Join Firefox as approved for running Epic Citadel Mozilla has been working hard to make asm.js as fast as possible in Firefox and progress has been really solid. Less ...

Aadhaar isn’t progress – it’s dystopian and dangerous

Mitchell Baker and Ankit Gadgil: India should pause further roll out of Aadhaar until a law protecting individual security is passed.

Mozilla DNS over HTTPS (DoH) and Trusted Recursive Resolver (TRR) Comment Period

We're crowdsourcing ideas and recommendations to help us enhance the privacy and security benefits of DNS-over-HTTPS (DoH) for users around the world

Distrusting New WoSign and StartCom Certificates

Mozilla has discovered that a Certificate Authority (CA) called WoSign has had a number of technical and management failures. Most seriously, we discovered they were backdating SSL certificates in order ...

Testing Firefox Monitor, a New Security Tool

From shopping to social media, the average online user will have hundreds of accounts requiring passwords. At the same time, the number of user data breaches occurring each year continues ...

Firefox Beta for Windows 10 on Qualcomm Snapdragon Now Available

Today, we’re excited to report the availability of our ARM64-native build of Firefox for Snapdragon-powered Windows 10 Always Connected PCs in our beta release channel, a channel aimed at developers or early tech adopters to test upcoming features before they’re released to consumers.

Fix your damned data races

Nathan Froyd recently wrote about how he has been using ThreadSanitizer to find data races in Firefox, and how a number of Firefox developers — particular in the networking and JS GC teams — have been fixing these.

Updated Firefox Security Indicators

Cross posting this. It was written a couple months ago and posted to Mozilla’s Security Blog This article was coauthored by Aislinn Grigas, Senior Interaction Designer, Firefox Desktop November 3, 2015 Over the past few months, Mozilla has been improving the user experience of our privacy and security features in…

Webmaker for Android

Mozilla is excited to announce that Webmaker for Android emerges from beta today. You can download the new version of our free, open source app from Google

Trusting transferred root certificates

Mozilla’s Root Store Program has taken the position that trust is not automatically transferable between organizations. This is specifically stated in section 8 of our Root Store Policy v2.5, which ...

Firefox OS for TV: UX Overview

Introduction The user experience of Firefox OS on the television platform comes from Mozilla's vision of the Connected Home. This departure from our smart phone interface focuses on ease of ...

We’re making Firefox accessible and delightful for everyone

I joined Mozilla in 2017 as an accessibility engineer and soon became the tech lead for accessibility. But for years prior, I was already deeply involved w

Polaris Privacy Initiative to Accelerate User-focused Privacy Online

At Mozilla, we believe that an individuals’ privacy on the Internet cannot be treated as optional. Our Privacy Principles guide us with the design of each of our products and ...

Static checking of units in Servo

Web browsers do a lot of calculations on geometric coordinates, in many different coordinate systems and units of measurement. For example, a browser may need to translate a position expressed ...

Porting rr to x86-64

(TL;DR: rr from git can record and replay 64-bit programs. Try it for yourself !)

Firefox 32-bit Linux Support to End in 2026

For many years, Mozilla has continued to provide Firefox for 32-bit Linux systems long after most other browsers and operating systems ended support. We made this choice because we care ...

Blocking Top-Level Navigations to Data URLs for Firefox 58

End users rely on the address bar of a web browser to identify what web page they are on. However, most end users are not aware of the concept of ...

The new Firefox design is here

What comes to mind when you think of Firefox? Is it our best-in-class privacy features and ad blocking capabilities? Our partnerships with Wrexham, NVIDIA

The EU Terrorist Content Regulation – a threat to the ecosystem and user rights

The EU has proposed a new law aimed at terrorist content online. Here we outline how the proposal poses a risk for rights and the internet ecosystem.

Mozilla Intends to Deprecate OpenSearch

Search Engine add-ons will be removed from AMO on December 5, 2019. To continue working, they must be converted to an extension using the WebExtensions API by December 3, 2019.

Mozilla and Epic Preview Unreal Engine 4 Running in Firefox

Today, Epic Games and Mozilla are demonstrating how the Web is continuing to evolve as a powerful platform for gaming by providing a sneak peek of Epic’s

About the future of Thunderbird

Mozilla Announces $225,000 for Art and Advocacy Exploring A.I.

Mozilla’s latest awards will support people and projects that examine the effects of AI on society At Mozilla, one way we support a healthy internet i

Best Firefox Add-ons of 2013

Every month, a committee of Firefox volunteers — who really, REALLY love Firefox Add-ons — puts their time and effort into finding the best new ...

Getting Superfish Out of Firefox

First things first: If you are reading this post on a recent Lenovo laptop, please click the lock icon in the URL bar, then click “More Information…”. If you see ...

Mozilla Games Technology Roadmap

In furthering the advantages and appeal of the Web as a platform for games and game technologies, Mozilla is publishing its games-focused roadmap. In short, it’s all about high-performance, plugin-free ...

Terms and Conditions, the Graphic Novel

When artist Robert Sikoryak put the iTunes Terms and Conditions into graphic novel format, he tapped a familiar problem. Most of us don’t read the terms

Delaying Further Symantec TLS Certificate Distrust

Due to a long list of documented issues, Mozilla previously announced our intent to distrust TLS certificates issued by the Symantec Certification Authority, which is now a part of DigiCert. ...

Firefox OS Update Adds New Features, Performance Improvements

Just weeks after the first Firefox OS phones hit the market, an update is being made available adding new features, support for a number of new languages and significant performance ...

Behind the design of the fresh new Firefox coming June 1

A new Firefox is coming your way on June 1 with a fresh look designed for today’s modern life online. We pored over the browser’s user interface pixel