In a clear move against the AI-first trend in web browsers, Mozilla has unveiled Project Nova, a major visual overhaul of Firefox that includes a simple, single setting to disable all artificial intelligence features.
The redesign-rolling out later this year-features rounded tabs, a refreshed color palette, and a new compact mode. But the key feature is an anti-AI switch.
Mozilla says the new settings use plain language to make privacy choices easier, including controls to turn off AI features entirely. This comes as Google's Chrome faces backlash for quietly installing an undeletable AI model on users' computers, and as new browsers like Dia and Opera Neon aggressively build AI-first experiences.
Brave has already capitalized on the backlash. In April, the company launched Brave Origin, a paid browser build that strips out all AI, wallet, VPN, and telemetry features for a one-time fee. The move followed years of viral tutorials on how to manually debloat Brave.
Firefox's approach may be subtler, but it represents a significant bet: that giving users visible, honest control is a competitive advantage in 2026. Mozilla has been losing market share for years, now hovering around 4%. But making an off switch for AI a headline feature could be the company's most honest pitch yet.