Mozilla has released an update to Firefox for Windows, macOS, and Linux — a release that has become especially significant for users. The key feature in Firefox 138 is the introduction of a built-in profile manager, allowing you to separate browser data by usage scenarios such as work, study, or personal life. Each profile will now have its own bookmarks, browsing history, and cache.
This functionality has been missing from Firefox for many years, while Chrome and other Chromium-based browsers have long offered profile separation as one of their main advantages. Mozilla previously tried to address the issue using the Containers feature, and third-party developers offered extensions that attempted to simulate profiles. However, none of these solutions matched the simplicity and built-in functionality that Firefox 138 now provides, as reported by PCWorld.
With this update, managing digital boundaries becomes easier and more intuitive for Firefox users. Whether switching between professional and personal use or creating a clean slate for a specific task, the new profile system streamlines the experience.
Additional Interface Enhancements and Features
Alongside the profile manager, Firefox 138 brings visual improvements for Windows users. Controls and windows now better align with the system’s native design, contributing to a more cohesive interface. Mozilla also introduced the ability to group tabs, making it easier to organize multiple pages, and added a weather forecast widget in the address bar, offering at-a-glance weather updates.
As expected, the update includes routine fixes aimed at addressing errors and closing vulnerabilities. While these behind-the-scenes improvements may not be immediately visible, they contribute to a more secure and stable browsing experience, notes NIX Solutions.
To ensure you are using the latest version of Firefox, click on the icon with three horizontal lines in the top-right corner of the browser. From there, go to the Help menu and select “About Firefox.” If the update hasn’t been downloaded yet, restarting the browser will trigger the process automatically (once you give permission to install). Alternatively, you can manually download Firefox 138 for Windows, macOS, or Linux from the official Mozilla website.
This update marks an important step for Firefox users who have long awaited native profile support — and we’ll keep you updated as more integrations become available.