Firefox Nightly split view browsing is now being tested as Mozilla experiments with new browser productivity tools. The feature appears in Firefox’s Nightly build, which is used for early-stage testing. Mozilla is also testing tab notes in the same release. Both tools are designed to improve multitasking and tab organization. These features are not yet available in stable Firefox releases.
How Firefox Nightly Split View Browsing Works
Firefox Nightly split view browsing allows two web pages to appear side by side in one browser window. Users can drag tabs into a split layout or activate the option from a tab menu. The screen space is automatically divided between the two views. Each page remains independently scrollable. The feature removes the need to open separate windows or rely on operating system window snapping.
Firefox Nightly Split View Browsing and Tab Notes
Alongside Firefox Nightly split view browsing, Mozilla is testing tab notes. Tab notes let users attach short text notes to individual tabs. The notes help explain why a tab is open or what task it relates to. Notes appear when hovering over a tab or viewing tab-related panels. The notes are stored locally by default and can sync across devices using Firefox Sync.
Browser Competition and Feature Development
Firefox Nightly split view browsing is being tested as competition in the browser market increases. Chromium-based browsers dominate global usage. Other browsers such as Opera and Vivaldi already offer advanced multitasking features. Mozilla continues to position Firefox as a privacy-focused browser while expanding productivity options. New features must pass Nightly testing before moving to Developer Edition, Beta, and stable releases.
Testing Status and Release Process
Firefox Nightly is Mozilla’s most experimental release channel. Features can change or be removed based on testing results and user feedback. Split view browsing and tab notes may take months to reach wider availability. Some features never advance beyond testing. Mozilla has not announced a release timeline for either tool.
