The Firefox Nova redesign is live. Mozilla shipped its biggest visual overhaul in about six years with Firefox 157, and most people will get it through a normal automatic update. Expect rounder tabs, a warmer color palette, and a compact mode that finally returns.
Here is what actually changed, what is still unclear, and how to check that you have it.
These are the facts worth knowing first:
- Firefox 157 carries the Nova look and shipped on September 28, 2026.
- It covers Windows, macOS, Linux, and Android.
- Compact mode is back after years of absence.
- Most installs update on their own, so you may already be running it.
If your tabs suddenly look softer and rounder, that is Nova, not a bug.
What the Firefox Nova redesign changes on screen
Nova is the name of the interface refresh, not a new browser. According to BetaNews, Mozilla wants everyone to simply call it Firefox again once the rollout is done.
The tab strip gets softer outlines, and the active tab picks up a subtle gradient so you can spot it faster. Menus, panels, and settings now share the same rounded corners, which makes the whole window feel less patchwork.
The palette leans on Firefox’s fire branding: warm glows and deep, smoky purples. Icons were redrawn too, so they look balanced in both light and dark themes.
Here is a quick comparison of the main visual changes:
| Area | What’s new in Nova |
|---|---|
| Tabs | Softer outlines, subtle gradient on the active tab |
| Panels and menus | Matching rounded corners and spacing |
| Colors | Warm glows and deep purples, plus 12 themes with light and dark variants |
| Icons | Redrawn for light and dark modes |
| Layout | Compact mode returns; tab groups, split view and vertical tabs are easier to reach |
The table shows that this is mostly a polish pass, not a rebuild of how Firefox works.
Compact mode is back for small screens
Compact mode condenses toolbars and tab rows to give web pages more vertical room. Mozilla removed the option years ago, and The Next Web reports it returns with Nova.
This matters most on laptops with short screens. You get a few more lines of page without touching your zoom level.
Mozilla also says it plans to let you customize shapes, such as tabs, over time. That is a plan, not something you can rely on today.
How to check you have the Nova look
Open the menu, go to Help, then About Firefox. The browser checks for updates and shows your version number. You want 157 or higher.
BetaNews notes that most existing installations update automatically. If you manage Firefox through an IT policy or a package manager, the update may arrive later than it does for everyone else.
The next release is close behind. Our guide to Firefox 158 and JPEG XL covers what lands on October 13. If you are curious why Firefox and Chrome both ship so often now, see our explainer on the Chrome two-week release cycle.
Who should update now, and who can wait
For home users, the answer is simple: update now. The release also fixed more than 70 security vulnerabilities, according to APH Networks, and security fixes are reason enough on their own.
Work laptops are different. If your company tests browser updates before approving them, a redesign can generate help-desk tickets from people who can’t find a button. Tell your team the layout changed, not the features.
Extension users should glance at their add-ons after updating. Themes built for the old toolbar may look odd next to Nova’s rounded surfaces, and some may need a refresh from their authors.
The AI switch: what we can and can’t confirm
Mozilla’s beta notes listed a setting to turn off AI features entirely. The Next Web describes the same option as part of Nova’s settings rewrite.
However, BetaNews points out that Mozilla’s stable release summary didn’t mention it. Beta items can change before the final build, so check your own Settings page rather than assuming it is there.
Nova also reportedly gives the built-in VPN more prominent placement and rewrites settings in plainer language. Both come from press coverage of Mozilla’s announcement, so treat the exact wording as subject to change.
Frequently Asked Questions
Is Firefox Nova a different browser?
No. It is a visual redesign inside regular Firefox. Your bookmarks, extensions, and passwords stay as they are.
Which Firefox version has the Nova design?
Firefox 157, released September 28, 2026, according to BetaNews. Later versions keep it.
Can I go back to the old look?
Mozilla hasn’t announced a way to restore the old design. Compact mode and themes let you tune the new one, though.
Does Nova work on Android?
Yes, Android is among the listed platforms. Mozilla also says desktop and mobile now share colors and design tokens, so they should feel more alike.
Should you care about the new look?
Yes, but only a little. Nova won’t make pages load faster, so don’t expect a performance jump. What you get is a cleaner window and compact mode, which is genuinely useful on a small laptop. Update, spend two minutes picking a theme, and move on.
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