New details about what we found, and how agentic harnesses are now able to reproduce real bugs and dismiss false positives.
A new Anthropic model found security problems ‘in every major operating system and web browser’
Nvidia, Google, Apple, Microsoft, and others will use Claude Mythos Preview to spot vulnerabilities in their systems.
Make the Web Work For Everyone – Mozilla Hacks - the Web developer blog
Updated 2016/07/22: Commenters found a few data errors (thanks!) which have now been corrected. Millions of websites have compatibility problems on one or more of the major browsers, leading to ...
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.
The Story of Firefox OS
I remember at a team dinner once Mitchell Baker, Mozilla’s Chairwoman and “Chief Lizard Wrangler”, talked about the importance of…
Agentic Browser Security: Indirect Prompt Injection in Perplexity Comet | Brave
The attack we developed shows that traditional Web security assumptions don't hold for agentic AI, and that we need new security and privacy architectures for agentic browsing.
Firefox Launches More Experimental Features Including PageShot, Min Vid and Tracking Protection
Mozilla Firefox launches experimental features. As part of Mozilla’s Test Pilot program, three new experimental features have been launched. Mozilla’s test pilot program gives users early access to some amazing features which is still in development phase and would be launched in future as part of official installers. In the beginning of this year, Mozilla...
Reducing Adobe Flash Usage in Firefox – Future Releases
Browser plugins, especially Flash, have enabled some of our favorite experiences on the Web, including videos and interactive content. But plugins often introduce stability, performance, and security issues for browsers. ...
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
Firefox OS, Animations & the Dark Cubic-Bezier of the Soul – Mozilla Hacks - the Web developer blog
I’ve been using Firefox OS daily for a couple of years now (wow, time flies!). While performance has steadily improved with efforts like Project Silk, I've often noticed delays in ...
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.
Rust and the Future of Systems Programming – Mozilla Hacks - the Web developer blog
If you’re a regular reader of Hacks, you probably know about Rust, the ground-breaking, community-driven systems programming language sponsored by Mozilla. I covered Rust on Hacks back in July, to ...
AI #163: Mythos Quest
There exists an AI model, Claude Mythos, that has discovered critical safety vulnerabilities in every major operating system and browser.
What’s Next for Multi-process Firefox – Future Releases
By Asa Dotzler and Brad Lassey Electrolysis is the project name for Mozilla's efforts to split Firefox into multiple processes to improve responsiveness, stability, and security. The first phase of ...
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.
Claude Mythos Preview \ red.anthropic.com
Earlier today we announced Claude Mythos Preview, a new general-purpose language model. This model performs strongly across the board, but it is strikingly capable at computer security tasks. In response, we have launched Project Glasswing, an effort to use Mythos Preview to help secure the world’s most critical software, and to prepare the industry for the practices we all will need to adopt to keep ahead of cyberattackers.