On Firefox, the empty space that appears on either side of the address bar is known as “Flexible Space,” which allows you to add extra space to separate groups of items, or to center or make the address and search bar smaller by adding multiple flexible spaces.
If you want to add or remove empty space in the toolbar, it’s a very easy task on Firefox.
In this guide, you’ll learn the steps to manage Flexible Space on Mozilla’s Firefox web browser on Windows 10, but the same instructions will work with other OSes.
How to add or remove empty space on Firefox
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Open Firefox.
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Right-click the toolbar area, and select Customize.
Firefox toolbar customization access -
Flexible Space is represented as rectangle, simply drag and drop a rectangle in or out of the toolbar to add or remove empty spaces.
Flexible Space (empty space) settings -
Click the Done button.
Alongside Flexible Space, note that you can add and remove virtually any items that appear in the toolbar, including the search bar, home, history, full screen, and many more.
Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 15 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 21 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and About.me. Email him at [email protected].