Claude Mythos signals a new era in AI-driven security, finding 271 flaws in Firefox

The AI exposed hundreds of bugs in Mozilla’s web browser, raising hopes around defensive advantage, alongside fears of ...

Mozilla Fixes 271 Firefox Bugs Using Anthropic’s Mythos AI

Mozilla says Firefox 150 patches 271 vulnerabilities found with Anthropic’s restricted Mythos AI, highlighting how quickly AI ...
The Next Web

Mozilla patched 271 Firefox bugs found by Anthropic’s Mythos, and says the zero-day era has an expiration date

Firefox 150 ships 271 bug fixes found by Claude Mythos Preview. Mozilla says the defects are finite. The UK AI Security Institute says the model can also attack autonomously.
PC World

Inside Project Nova, Firefox’s biggest redesign in years

PCWorld reports Mozilla is launching Project Nova, Firefox’s biggest interface redesign in six years, featuring AI integration and enhanced customization options. The overhaul addresses Firefox’s ...
Linux Journal

Firefox 149 Arrives with Built-In VPN, Split View, and Smarter Browsing Tools

Mozilla has officially released Firefox 149.0, bringing a mix of new productivity features, privacy enhancements, and interface improvements. Released on March 24, 2026, this update continues ...
Neowin

Firefox gets big update with built-in VPN, Split View, and other improvements

Mozilla has started rolling out Firefox 149 to all users in the Stable Channel. The latest release delivers several notable feature updates (announced previously) that improve productivity and privacy ...
Lifehacker

Firefox Is Getting a Free Built-In VPN

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...
TechCrunch

Anthropic’s Claude found 22 vulnerabilities in Firefox over two weeks

In a recent security partnership with Mozilla, Anthropic found 22 separate vulnerabilities in Firefox — 14 of them classified as “high-severity.” Most of the bugs have been fixed in Firefox 148 (the ...
Neowin

Mozilla is working on a big Firefox redesign, here is what it looks like

Mozilla has embarked on yet another redesign for Firefox, codenamed "Nova," and here is your first look at what it could look like when it releases. Mozilla is working on a huge redesign for Firefox, ...
Forbes

Mozilla Issues Firefox System Takeover Security Update

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Update Firefox and Thunderbird now. Mozilla has confirmed a security issue affecting all ...
ZDNet

Firefox users didn't want AI, so Mozilla is giving them a way to kill it

AI arrived in Firefox in December, and more control is coming soon. Firefox will soon let you enable or disable AI features. Firefox 148 arrives Feb. 24. In December, when Mozilla announced it would ...
HotHardware

Firefox Becomes First Major Browser With A Full AI Kill Switch

As with most other software products, web browsers are full speed ahead in implementing AI features. However, Firefox has encountered push-back from a significant portion of its user base who want ...