Firefox 153 Brings Multi-Account Containers Directly into Browser as Native Feature
Key Takeaways
- ▸Firefox 153 introduces native Containers, moving the popular add-on feature directly into the browser
- ▸Each container isolates cookies, tracking, and browsing history to prevent cross-site tracking and ad targeting
- ▸Users can create custom containers and manage them directly from Firefox settings without installing extensions
Summary
Mozilla announced the preview of native Containers in Firefox version 153, bringing previously add-on-only functionality directly into the browser. The feature allows users to maintain separate browsing contexts for different parts of their online life—work, personal, shopping, and banking—all within a single browser window. Cookies and ad tracking are isolated to each container, preventing cross-site tracking and ad targeting based on browsing activity in other containers.
The native Containers feature evolved from the popular Multi-Account Containers extension that users have relied on for nearly a decade. By integrating this functionality directly into Firefox, Mozilla aims to increase accessibility and make privacy-focused browsing simpler for all users without requiring extension installation. The preview release in Firefox 153 includes the ability to create custom containers with personalized names, colors, and icons, while full feature parity with the extension is planned for future updates.
- Multi-Account Containers extension users can continue using the add-on alongside native containers
- Mozilla plans to continue developing container features with future updates beyond this preview release
Editorial Opinion
Moving Containers into Firefox as a native feature is a significant step toward making privacy protection accessible by default rather than requiring technical knowledge to install extensions. The timing is important as browsers increasingly compete on privacy credentials and users grow more aware of tracking concerns. By reducing friction—no extension installation required—Firefox could significantly expand adoption of container-based privacy practices. This sets a strong example for how browser makers can prioritize user privacy without compromising usability.
