Firefox
Coverage of Firefox in the Nexus archive.
- Mozilla Revokes Firefox and Thunderbird Linux Signing Key After Key Lands in Private Repo
Mozilla has scrapped the cryptographic signing key used for Firefox and Thunderbird downloads on Linux. This action was necessary after an unencrypted copy of the key was mistakenly committed to one of the company's private code repositories. Previously, this key allowed users and Linux distributions to confirm that downloaded Firefox tarballs originated from Mozilla and were untampered with.
- Show HN: Bor – Open-source policy management for Linux desktops
Bor is an open-source system for centralized Linux desktop management, using a Go agent and central server to stream policies in real-time via mTLS/gRPC. Version 0.8 adds support for Thunderbird, Microsoft Edge for Business, and FirewallD zones, with existing support for Firefox, Chrome, KDE, dconf, polkit, and package management. The developer seeks feedback on the architecture and policy model for managing Linux workstations.
- A week in security (July 13 – July 19)
The article highlights multiple security vulnerabilities and updates, including a Shark vacuum flaw exposing home data, security updates for Adobe, Chrome, Firefox, VMWare, and Zoom, Samsung's reversal on health data deletion, and a July 2026 Microsoft Patch Tuesday addressing 622 CVEs. It also warns of scams using FaceTime and fake Apple apps, along with AI-based Ghostcommit attacks and phishing threats.
- Mozilla speeds Firefox release schedule to biweekly
Mozilla plans to shift Firefox Desktop and Android releases from a four-week to a two-week cadence starting September 2026, while Extended Support Releases (ESR) will remain annual. Firefox 153, scheduled for July 21, introduces features like improved PDF editing, QR code generation, and enhanced security measures.
- Security updates available for Adobe, Chrome, Firefox, VMWare, and Zoom
Security updates for Adobe, Chrome, Firefox, VMWare, and Zoom address critical vulnerabilities including code execution flaws, authentication bypasses, and input validation issues. Users are urged to update affected software promptly to mitigate risks of exploitation.
- Firefox 12.58% for Desktop Browser Market Share in North America June 2026
Firefox held a 12.58% desktop browser market share in North America as of June 2026, according to StatCounter. The data is cited in an article linked to Hacker News with 25 points and 6 comments.
- Elevating Privileges from Firefox to Android Root
The article discusses a method to escalate privileges from Firefox to Android root, highlighting a potential security vulnerability. It references a specific article URL and Hacker News comments.
- Firefox Merges Support for Vulkan Video Decoding
Firefox has merged support for Vulkan video decoding, enhancing its multimedia capabilities. The feature is now integrated into the browser, as indicated by the provided article and comment links.
- Mythos AI Model Finds Hundreds of Vulnerabilities in Firefox
The Mythos AI model identified hundreds of vulnerabilities in Firefox. The discovery highlights potential security issues in the web browser.
- DuckDuckGo makes its ‘no-AI’ search engine easier to access as its traffic booms
DuckDuckGo has launched 'no AI' web extensions for Chrome and Firefox users to enhance accessibility to its 'no-AI' search engine, which is experiencing increased traffic.
- Firefox's Big Redesign Gives You a Button to Kill All the AI
Firefox is set to release Project Nova later this year, featuring a redesigned interface with a compact mode and a toggle to disable all AI features. The update aims to provide users with greater control over AI functionalities while maintaining a cleaner, more streamlined browsing experience.
- Firefox is working on a rounded redesign with easy-to-find controls for privacy and AI
Mozilla is launching "Project Nova," a major visual redesign for Firefox featuring rounded UI elements, updated icons, and a refreshed fire-inspired color palette. The redesign emphasizes easier access to privacy settings and includes a prominent switch for disabling all AI features, with rollout planned for later this year.
- Firefox AI guardrails arrive for mobile
Firefox has introduced AI guardrails for mobile, allowing users to turn off all AI enhancements with one tap. This feature provides users with more control over their browsing experience. The introduction of this feature is a significant development in the field of browser technology.
- Firefox 151 helps you edit PDFs – and switch OSes
Firefox version 151 has been released with new features, including a fresh new look and feel for the New Tab page, improved handling of Firefox Backup, and the ability to merge multiple PDFs into one. The release also includes over 30 security fixes and improvements to multi-monitor handling and macOS integration. Thunderbird 151 has also been updated with new features.
- Staking Rewards Discrepancy
A user reported a discrepancy in staking rewards between using Rustiq validator in Phantom wallet on Chrome and Firefox, showing different APYs for the same validator. The issue was submitted by a user named mikeand241. The problem seems to be related to the browser used.
- Show HN: Rotunda - A browser built for agents with simulated typing
Rotunda is a Firefox fork built for agent use with features like realistic simulation of mouse movements and keyboard commands. It aims to make automated browsing more stealthy and natural. The project is still in its early stages and is available on GitHub.
- Mozilla says 271 vulnerabilities found by Mythos have "almost no false positives"
Mozilla used Anthropic Mythos, an AI model, to identify 271 Firefox security flaws over two months with almost no false positives. The breakthrough was achieved through improvements in the models and a custom harness developed by Mozilla. This development is seen as a significant step forward in vulnerability detection.
- How Anthropic’s Mythos has rewritten Firefox’s approach to cybersecurity
Anthropic's Mythos has discovered high-severity bugs in Firefox, prompting a reevaluation of Mozilla's cybersecurity approach. Security researchers at Mozilla have been working with Anthropic's findings. The discovery has significant implications for Firefox's security.
- Hardening Firefox with Claude Mythos Preview
The article discusses hardening Firefox with Claude Mythos Preview, a technology improvement. The content is available on arstechnica.com and has garnered 103 points and 65 comments on news.ycombinator.com. The topic revolves around enhancing browser security.
- Firefox integrates an ad-blocker, but not to block ads
Firefox has integrated an ad-blocker from Brave into its code, but it's not intended to block ads and is disabled by default. The feature is experimental and has no user interface to enable it. Waterfox, a fork of Mozilla's browser, is also experimenting with a built-in ad-blocker using the same code.
- GNOME may rule Ubuntu Resolute Raccoon, but X.org isn't roadkill yet
Ubuntu 26.04 has been released with GNOME as its default desktop, but alternative desktops are available, including some that still use X.org. The alternative desktops have different support lifespans and may require more frequent upgrades. Users can choose from seven different desktops, each with its own unique features and limitations.
- Show HN: Adblock-rust Manager – Firefox extension to enable the Brave ad blocker
The Firefox extension Adblock-rust Manager provides a user interface to enable and manage Brave's adblock-rust engine, which is disabled by default in Firefox 149. It offers features like an ETP toggle, filter list management, and preset lists for easier configuration.
- The most exciting laptop I’ve seen in forever
The author highlights excitement about a new laptop and discusses recent activities, including reading about NASA seamstresses, listening to a Daft Punk podcast, and exploring a new browser. The article also mentions cultural and technological interests.
- Firefox Has Integrated Brave's Adblock Engine
Mozilla Firefox has integrated Brave's adblock engine, replacing its previous adblock solution. This change aims to improve ad-blocking efficiency and user experience by leveraging Brave's advanced technology.
- A quick look at Mythos run on Firefox: too much hype?
The article examines the performance of Mythos on Firefox, questioning whether the hype surrounding it is justified. It includes 4 points of discussion but no comments, with links to the article and Hacker News comments.
- We found a stable Firefox identifier linking all your private Tor identities
A privacy vulnerability in Firefox's IndexedDB was discovered by Fingerprint.com, allowing tracking of private Tor identities. This flaw undermines the anonymity Tor users rely on by linking multiple identities through a stable Firefox identifier.
- Thunderbird in hand worth 2 Outlooks as fresh FOSS fave and Firefox arrive
The article emphasizes Thunderbird's reliability compared to Outlook, especially in situations without tech support, and mentions the arrival of new FOSS favorites and Firefox.
- Mythos found 271 Firefox flaws – but none a human couldn’t spot
Mozilla Foundation tested Anthropic’s Mythos AI model, which identified 271 Firefox security flaws. The CTO emphasized that while AI can automate bug detection, human oversight remains critical for security.
- Mozilla says it patched 271 Firefox vulnerabilities thanks to Anthropic's Claude Mythos
Mozilla has patched 271 Firefox vulnerabilities using Anthropic's Claude Mythos model, enhancing browser security. The collaboration highlights the use of advanced AI tools in addressing software vulnerabilities.
- Mozilla Used Anthropic’s Mythos to Find and Fix 151 Bugs in Firefox
Mozilla utilized Anthropic’s Mythos AI to identify and resolve 151 bugs in Firefox. The Firefox team acknowledges AI's potential in cybersecurity but cautions that developers may face challenges during the transition.
- WebUSB Extension for Firefox
A new WebUSB extension for Firefox has been developed and shared on GitHub, with discussions ongoing on Hacker News. The article includes 21 points and 19 comments, indicating community engagement.
- How to make Firefox builds 17% faster
The article discusses methods to improve Firefox build performance by 17% through caching WebIDL codegen. It highlights technical optimizations aimed at enhancing development efficiency.
- Installing Every* Firefox Extension
The article discusses the process of installing every Firefox extension, with links to the original blog post and Hacker News comments. It highlights technical exploration around browser customization and user experience.