Firefox 149 beta develops a split personality
The Register
March 2, 2026
AI-Generated Deep Dive Summary
The latest beta version of Firefox, 149, introduces a split view feature that allows users to display two web pages side by side within the same window. This innovative tool, which can be dragged to adjust its position, is now enabled by default in the beta and marks a significant step forward for multitasking in browsers. While previous versions of Firefox included this feature, it was not activated by default. The split view enables users to open two tabs simultaneously, making it easier to compare content or work on multiple tasks efficiently.
To use the split view, users can select two tabs and choose "Open in Split View" from the context menu. Once enabled, each pane scrolls independently, with its own address bar and tab controls. However, upgrading to the beta version requires careful consideration, as it may overwrite settings or profiles if not managed properly. Mozilla recommends creating a new profile for testing or using command-line switches to avoid data loss. Additionally, users can enable split view manually by accessing browser settings through `about:config` and toggling the feature on.
The introduction of split view in Firefox 149 beta is particularly appealing for tech-savvy users who value efficiency and productivity. This feature not only enhances browsing flexibility but also aligns with growing demands for more intuitive and user-friendly browser tools. While some may find the setup process a bit cumbersome, the potential benefits for multitasking make it worth exploring. Overall, split view represents a meaningful advancement in web browsing functionality.
Verticals
tech
Originally published on The Register on 3/2/2026