Firefox 148 adds AI kill switch and enhanced privacy controls

Firefox 148 includes a new "AI kill switch" feature that allows users to disable AI functionalities like chatbot prompts and AI-generated link summaries. Mozilla states that once AI features are turned off, future updates won't override this choice.
How to disable AI features
To disable AI features, navigate to Settings > AI Controls and toggle the 'Block AI Enhancements' option. This prevents in-app notifications about AI features and removes previously downloaded AI models from the device.
For selective blocking, users can maintain some AI functionalities while avoiding cloud-based services, such as keeping on-device translations.
Additional privacy controls
Firefox 148 offers more control over remote updates while minimizing data collection. Users can set these preferences under Settings > Privacy & Settings > Firefox Data Collection.
Technical enhancements
- Integration of Trusted Types API and Sanitizer API to combat cross-site scripting (XSS) issues
- Improved screen reader compatibility for mathematical formulas in PDFs
- Firefox Backup now available on Windows 10
- Translation capabilities added for Vietnamese and Traditional Chinese
- New tab wallpapers in container tabs
- Service worker support for WebGPU
📖 Read the full source: HN AI Agents
👀 See Also

Benchmarks Show Distilled Models Match Frontier LLMs on Structured Tasks at 10x Lower Cost
A comprehensive comparison of small distilled Qwen3 models (0.6B to 8B) against frontier LLMs shows distilled models match or beat mid-tier frontier models on 6 out of 9 tasks at dramatically lower cost, with Text2SQL achieving 98.0% accuracy at $3/M requests versus $378 for Claude Haiku.

Claude Code v2.1.90 Release: New Interactive Lessons, Performance Improvements, and Bug Fixes
Claude Code v2.1.90 introduces /powerup interactive lessons, adds the CLAUDE_CODE_PLUGIN_KEEP_MARKETPLACE_ON_FAILURE environment variable for offline use, and includes multiple performance improvements and bug fixes for tools, UI, and security.

Reddit Discussion on Long-Term Risks of Coding Agent Dependency
A Reddit user argues that current coding agents like Claude Code and Copilot create dependency that could lead to vendor lock-in, centralization of software creation, and commoditization of engineering craftsmanship.

AI Usage in Development Hits 93%, Yet Productivity Gains Stagnate at 10%
The use of AI coding assistants is prevalent among developers, with 93% adopting them. However, the productivity boost remains limited to just 10%.