Mozilla announces switch to disable all Firefox AI features

Mozilla announced that starting with Firefox 148 (February 24), a new “Block AI enhancements” toggle and an AI controls panel will let desktop users disable all generative AI features or manage them individually (translations, PDF image alt text, AI-enhanced tab grouping, link previews, and sidebar chatbot access). The controls default off, mirror existing user choices, persist across updates, and will roll out via Firefox Nightly first; leadership emphasizes user agency, clarity on privacy and data use, and making AI strictly opt-in.