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Feedback on the new UI: corner rounding, dark theme, and window density
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14-09-2026 10:26 PM
Please reduce the corner radius of tabs and other UI elements. This is one of the things I really hate about Chrome. Alternatively, at least consider adding an option in the Appearance tab in the future to adjust the corner radius. I think this would suit most users.
Also, the rounded menus have some issues because the entire interface hasn’t been fully updated to accommodate them. Some parts look incorrect, as shown in the screenshot.
I also don’t really like the new default dark theme. The top bar, at least on macOS, stands out too much. I think it would be better to keep it as a solid color like it was before.
That said, thanks for the “Window density” feature! I used to do this through CSS in my theme, and now there’s finally a proper built-in option for it.
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14-09-2026 10:57 PM
Bonjour
For illustration userChrome.css
https://www.youtube.com/watch?v=OJF6i0OsEXA
https://connect.mozilla.org/t5/firefox-labs/can-you-stop-putting-adverts-in-the-menus/td-p/136978
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14-09-2026 11:10 PM - edited 14-09-2026 11:14 PM
On Auto, yes, I get the same view as in your video.
The issue appears when "Window density -> Compact" is enabled. Please try Compact mode. I don't have a "chrome.css" or any custom UI modifications enabled, so this is happening with the default Firefox UI.
I'm not referring to the "Sign in to sync" message — that doesn't bother me. I'm referring specifically to the UI elements shown in the screenshot when "Window density -> Compact" is enabled.
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14-09-2026 11:55 PM - edited 15-09-2026 12:46 AM
I tried Window density (sorry for the quality of the video).
https://www.youtube.com/watch?v=qe3o1PLuzuI
Compact mode, below.
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15-09-2026 12:52 AM
Yes +1 from me. The new look of rounded edges and new dark theme are a lot worse for me as well
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15-09-2026 02:14 AM
My Firefox Developer Edition just updated to 157.0b1, and it came with the new Nova UI/UX. Am not keen on it.
Things I don't like:
- the gradient in the title/tab bar. (Don't want a gradient)
- the gradient on the border of the selected tab. (Don't want a gradient)
- the radius on the border of the selected tab - way too big.
My theme is called "Dark" (standard theme from Mozilla, v1.3.4).
Windows 11.
I've resorted to browser.nova.enabled = false to go back to the old UI.
I'm one of those that doesn't like the design of the "Sign in to synchronise" at the top of the 3 bar menu: it stands out too much. For me: get rid of the "fox" and the background purple. Just have a regular menu item, "Sign in". If you want to promote "Sync" functionality, do it in the "What's new" pages.
We all have our own views...
Regards
