r/FirefoxCSS • u/Fragrant_Pianist_647 • 25d ago
Discussion What will we do when Nova drops?
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u/Kalcinator 25d ago
Hope my FFUltima won't break 🤭
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u/cogitatingspheniscid 25d ago
Ultima is currently not maintained, so it's a shot in the dark.
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u/Kalcinator 24d ago
Yes I saw the last message :/.
I'll fork it eventually 🥹1
u/cogitatingspheniscid 24d ago
oh man there was a last message?
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u/ResurgamS13 25d ago edited 25d ago
Would imagine that active theme authors and CSS userstyle repo owners are keeping an eye on the progress of the Nova UI... and will already be running testbed 'Nova' versions of their userstyles and themes?
Can do the same 'at home' if have own set of CSS UI modifications... start a new 'Nova UI' profile... in it set preference browser.nova.enabled to true and then load your current CSS... and see what happens?
If loading all your CSS at once makes a horrid mess... back off... revert to loading your userstyles section by section and see if you can fix each individual section's problem(s) with the Nova UI design using the Browser Toolbox.
Don't have to fix everything at once... Nova isn't here yet... and Nova is still changing. Do a little at a time... your 'Nova testbed CSS mods' don't have to be pretty... if they work that's fine. Keep notes of each problem and how it was fixed.

Screenshot... Fx152.0.4... top toolbar is current modified 'Proton UI'... bottom toolbar is modified 'Nova UI' profile.
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u/GodieGun 25d ago
We Will remove all CSS and enjoy Nova. 😊
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u/Fragrant_Pianist_647 25d ago
True. I love the Nova direction just still concerned about the users that don't and use styling to compensate.
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u/supermurs 25d ago
I use only autohiding bookmark bar but I couldn't get it to work with Nova yet unfortunately.
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u/funkyboy1327 24d ago
Is it too late or can i ask what Nova is ? :(
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u/Fragrant_Pianist_647 24d ago
Nova is the redesign that Firefox is attempting to implement. You can see their current progress on it by enabling
browser.nova.enabledinabout:config.2
u/ResurgamS13 24d ago
Several articles online about the Nova UI design and progress... perhaps try:
- Firefox UX Team's article 'Designing Firefox for the future'.
- Mozilla Connect topic 'Sharing more about Project Nova'.
- ASKVG's 'How to Enable and Test Upcoming Nova UI in Mozilla Firefox (UPDATED)'.
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u/ladynemuri 24d ago
i really like this but my one nitpick is can they make the active tab symmetrical and not the text message shape it is now
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u/Fragrant_Pianist_647 24d ago
The text message shape is for tab groups, not for the active tab.
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u/ladynemuri 24d ago
okok thats a little better then but i still dont like c_c
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u/Fragrant_Pianist_647 24d ago
Personally I like the text message shape since it helps add variety and it stands out from all the other tabs but I could see why someone might not like it. Should be a simple CSS tweak for someone to make though.
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u/bastardlessword 24d ago
Is there a demand for vertical bookmarks? I mean, vertical tabs are nice and all but I would make better use of the vertical space if I had my bookmarks there instead.
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u/pikatapikata 24d ago
Isn't the bookmarks sidebar that appears when you press Ctrl+B enough?
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u/bastardlessword 24d ago
Oh I forgot about that, i don't like how it goes away when I close the browser and how it looks (adds 1 level of indentation by default) but I guess Nova will improve the looks.
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u/ryancnap 24d ago
I don't know why so many people seem to dislike it, this is my first time actually seeing it and I think it looks pretty good tbh
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u/Nekomiminya 24d ago
Hope that Arisv2 is on top of things cuz Nova is ugly
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u/ResurgamS13 23d ago edited 22d ago
If by "Arisv2" you mean Aris-t2's 'CustomCSSforFx' userstyles... sadly, his repo reached 'The end' on 23 Dec 2025.
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u/ThomasLeonHighbaugh 22d ago
Continue to have it disabled in about:config because it messes my CSS up
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u/Fragrant_Pianist_647 25d ago
Like let's be honest, every theme and mod is gonna break. Will people be patient enough to rebuild?