Firefox just got a redesign with round tabs, new themes, and Compact Mode

<img src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/05/firefox-project-nova-redesign-tab-toolbar.png?quality=90&strip=all&crop=7.8206724782067,0,84.358655043587,100" alt="A screenshot of the Firefox toolbar with the new Project Nova design" title="A screenshot of the Firefox toolbar with the new Project Nova design" data-has-syndication-rights="1" data-caption="Firefox's new look has more rounded UI elements. | Image: Mozilla” data-portal-copyright=”Image: Mozilla”>
<img src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/09/firefox-redesign-new-theme-picker-screenshot.png?quality=90&strip=all&crop=2.8571428571429,0,94.285714285714,100" alt="" title="" data-has-syndication-rights="1" data-caption="New theme options will include light and dark modes. | Image: Mozilla” data-portal-copyright=”Image: Mozilla”>
<img src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/09/firefox-157-redesign-compact-mode.png?quality=90&strip=all&crop=7.8125,0,84.375,100" alt="A promotional image for Compact Mode in Firefox 157" title="A promotional image for Compact Mode in Firefox 157" data-has-syndication-rights="1" data-caption="The new design also brings back Firefox's Compact Mode. | Image: Mozilla” data-portal-copyright=”Image: Mozilla”>