Mozilla will add an 'AI window' to Firefox (www.engadget.com)

Mozilla is developing "AI Window," an opt-in browsing mode for Firefox that provides a dedicated space to chat with an AI assistant and get contextual help while you browse. The new window will sit alongside Firefox’s regular and Private windows, letting users explicitly choose when to engage with AI rather than having it automatically integrated into all browsing. The feature is still in development; Mozilla is inviting users to sign up for early access and feedback. For the AI/ML community this is another noteworthy move in the browser-AI arms race: it signals a push toward modular, user-controlled AI experiences rather than opaque, always-on integrations. Crucially, Mozilla has not yet disclosed technical specifics—such as which models or providers will be used, whether inference will run locally or in the cloud, or how browsing data will be handled—so privacy guarantees and security implications remain open questions. The opt-in design and separation from Private Window suggest Mozilla is aiming to balance utility with user choice and privacy, but implementation details will determine real-world trade-offs for model architects, privacy advocates, and developers building browser-aware AI features.