Mozilla Connect

asafko · 20-02-2026

Hi folks, Tab notes feature will become available in Firefox Labs in Release 149, coming out in late March. Your feedback in Nightly greatly helped us improve it from the first working prototype – and you'll see some of the usability enhancements lan...

asafko · 08-01-2026

Hi folks, Over a year ago, we introduced an updated version of the sidebar that offers easy access to multiple tools – bookmarks, history, tabs from other devices, and a selection of chatbots – all in one place. As the new version has gained popular...

asafko · 10-03-2025

Hi folks! The updated sidebar and vertical tabs are now rolled out and available to all release users on Firefox 136. How to enable itGo to Firefox Settings → General → Browser Layout and check Show sidebar. Then, choose the settings icon in the side...

asafko · 21-11-2024

Hi folks, Over the next couple of months, we will be testing an updated sidebar, its tools, and vertical tabs in the release version of Firefox (remember, a while back, we asked you to try it out in Nightly 131, and we appreciated your feedback and ...

asafko · 24-07-2024

Hi folks, Vertical tabs and a new sidebar experience that make multitasking and context-switching easier are now available in Nightly 131. To try them, update to the latest Nightly and go to Settings > Firefox Labs, and activate the Sidebar and Verti...

asafko · 07-04-2026

@_playerx Hi! Thank you so much for your kind words, very happy you're enjoying the feature! The support for the first split view shortcut will ship in just a few weeks, on April 21st – you'll be able to hold the Alt (Windows) / Option (macOS) while ...

asafko · 07-04-2026

Hi @ngdangtu Thank you for your kind words about the feature and extended feedback! We are certainly committed to polishing it over time. Here are the things we’re already working on or are already possible: > 2. Context menu for select 2 tabs shoul...

asafko · 07-04-2026

Hi! @Mongokino! Now that the core part of the Split View experience went live in Firefox 149, we are hoping to support adding pinned tabs to split view a little later in the year. When you tried the feature in Nightly, it may not have yet had the URL...

asafko · 07-04-2026

@Menaan Thank you so much for your feedback! Let me dive in to see if we can find solutions that may work for you: > First, if you start a split view, it'd be more intuitive and convenient if you can just select a tab in the open tabs for the 2nd ha...

asafko · 07-04-2026

@Stormist I am very sorry to hear this! I'm hopeful you'd consider giving it another try. You can close the split view from a handful of entrypoints: The address bar icon for a split view tab.The ⋮ icon in the split view footer.The tab right-click...

Mozilla Connect

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Tab Notes going live in Firefox Labs - please share your feedback

Phasing Out the Older Version of Firefox Sidebar in 2026

Sidebar and Vertical Tabs Launch in Release 136

Sidebar and vertical tabs: release channel experimentation

Firefox Sidebar and Vertical tabs: try them out in Nightly Firefox Labs 131

Re: Split-screen/Tab-in-Tab feature (view more than one tab at once)

Re: Split-screen/Tab-in-Tab feature (view more than one tab at once)

Re: Idea about split-screen on the same page - adding a pagination feature would be a great bonus

Re: Split-screen/Tab-in-Tab feature (view more than one tab at once)

Re: Split-screen/Tab-in-Tab feature (view more than one tab at once)