Mozilla is set to release Firefox 148 on February 24, 2026, which will include a global "kill switch" for generative AI features, giving users more control over their browsing experience. This update directly addresses user feedback regarding privacy concerns and unwanted AI integrations, while still offering AI features as an optional choice.
The upcoming Firefox version will feature a dedicated "AI Controls" section within the desktop settings. Here, users can manage AI features individually or use the global "Block AI Enhancements" switch to disable all current and future AI-powered tools. This includes features like AI translations for web pages, AI-generated alt text in PDFs, AI-enhanced tab grouping, link previews, and a sidebar chatbot that supports services like Claude, ChatGPT, Copilot, Gemini, and Mistral. All AI features are opt-in by default, requiring explicit activation from the user.
Mozilla's decision to introduce the AI kill switch is a direct response to user resistance against the increasing integration of AI in browsers. Many users have expressed concerns about privacy risks associated with data being sent to third-party AI services and the annoyance of unsolicited AI prompts. By centralizing AI controls and making them fully opt-in, Mozilla aims to differentiate itself from competitors who are aggressively pushing AI integration, such as Google's planned Gemini integration in Chrome.
When enabled, the "Block AI enhancements" switch not only disables existing AI features but also prevents any data transmission to third-party AI services, mitigating cybersecurity risks associated with external API calls. Furthermore, the settings are designed to persist across updates, eliminating the need for users to reconfigure their preferences after each release. The kill switch also prevents notifications and prompts related to disabled AI features, ensuring a cleaner and less intrusive browsing experience.
Mozilla's approach reflects a commitment to user choice and privacy, potentially strengthening user loyalty among those wary of generative AI. The company can continue investing in AI development without alienating its user base by offering this level of control. This strategy contrasts with Vivaldi's outright rejection of generative AI features and Microsoft's reported reevaluation of Copilot in Windows, positioning Firefox as a browser that balances innovation with user empowerment.
The new AI controls are currently available for testing in Firefox Nightly, with Mozilla actively seeking community feedback through Mozilla Connect to further refine the implementation. This move underscores Mozilla's dedication to building a browser that prioritizes user control and adapts to the evolving needs and preferences of its users in the age of AI. As Adjt Varma, head of Firefox, stated, the goal is to give users "clear, simple choices" about how much AI they want in their browser, including the option to have none at all.
