Phasing Out the Older Version of Firefox Sidebar in 2026
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 … Read more
Ania Safko
Firefox Sidebar and Vertical tabs: try them out in Nightly Firefox Labs 131
We are excited to share that vertical tabs and a new sidebar experience are now available in Nightly 131. This update has been highly anticipated and requested by the community, … Read more
Experimenting with AI services in Nightly
Ed Lee and Ania Safko
In the coming months, we will experiment with providing easy access to optional AI services in Nightly to improve productivity as you browse. This work is part of our improvements … Read more
Exploring improvements to the Firefox sidebar
What are we working on? We have long been excited to improve the existing Firefox sidebar and strengthen productivity use cases in the browser. We are laying the groundwork for … Read more