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Re:The new Firefox design is here by n4bz0r on Tuesday September 29, 2026 @10:08AM (#49893587)
The UI was tidy and nearly perfect, now it's all over the place: weird paddings, different border radiuses even within a single element, clashing background colors, and boy, do I love rainbow gradients everywhere.

Update: for those unhappy with the changes, you can roll them back for now:

  about:config -> browser.nova.enabled -> false
Re:The new Firefox design is here by jsrcout on Tuesday September 29, 2026 @11:05AM (#49894590)
I'm glad we can roll it back, but wonder how long that will be the case.
Re:The new Firefox design is here by malfist on Saturday October 10, 2026 @12:21PM (#50034385)
End of next month.
Re:The new Firefox design is here by romanovcode on Tuesday September 29, 2026 @10:10AM (#49893625)
I cannot find a setting to disable the gradient. It's very annoying indeed.
Re:The new Firefox design is here by coldpie on Tuesday September 29, 2026 @10:18AM (#49893750)
You can browse the Themes to try to find one you like better. But yeah it'd be nice if one of the default built-in themes was super plain. Closest they have available by default is a grayscale gradient ("Ash").
Re:The new Firefox design is here by justin-reeves on Tuesday September 29, 2026 @04:15PM (#49899727)
> Proton by Firefox

> A classic grey palette for a calm, focused feel.

https://addons.mozilla.org/en-CA/firefox/addon/firefox-proto...

Re:The new Firefox design is here by rmnclmnt on Tuesday October 06, 2026 @04:44PM (#49983827)
Late to the party but thanks for the pointer, at least with the Proton theme the color palette is not burning my eyes anymore (but still have the crazy Nova full rounded radius everywhere)
Re:The new Firefox design is here by supermatou on Tuesday September 29, 2026 @10:58AM (#49894479)
Here you go: add this to your userChrome.css file.

/disable gradient

/ 1. Remove the toolbar/tab bar gradient completely /

:root:not([theme-image-in-toolbox]) body,

:root[theme-image-in-toolbox] #navigator-toolbox {

    background-image: none !important;
}

/ 2. Strip Nova purple accent color/focus outlines from the URL & search bar */

:root {

    --toolbar-field-focus-background-color: var(--toolbar-field-background-color) !important;
}

.urlbar-input-container, #searchbar {

    --toolbar-field-border-color-focus: var(--toolbar-field-border-color) !important;

    box-shadow: none !important;

}
Re:The new Firefox design is here by supermatou on Tuesday September 29, 2026 @11:02AM (#49894549)
Bonus:

/* Hide Kit mascot illustrations from menus, dialogs, and in-app alerts */

.mascot-icon,

.panel-header-mascot,

[mascot="kit"],

.onboarding-mascot-container {

    display: none !important;

}
Re:The new Firefox design is here by n4bz0r on Tuesday September 29, 2026 @10:15AM (#49893714)
The gradient is part of the theme. Updated the post with how to roll back the UI changes for now. After rolling back, select an old theme.
Re:The new Firefox design is here by alsetmusic on Tuesday September 29, 2026 @10:12AM (#49893670)
I just turned off auto-updates after reading this. Safe for now.
Re:The new Firefox design is here by sunaookami on Tuesday September 29, 2026 @10:57AM (#49894441)
Naive and outright dangerous advice, every release fixes important security issues.
Re:The new Firefox design is here by pureliquidhw on Tuesday September 29, 2026 @11:20AM (#49894866)
Then separate UI updates from security updates. No need for them to be bundled. Gradients and insane padding pushing people to not update make them inherently less secure!
Re:The new Firefox design is here by mossTechnician on Tuesday September 29, 2026 @03:25PM (#49899024)
It's possible to stick to an ESR release to avoid feature updates in the past, but recently, Mozilla has started bundling feature updates into bugfixes.

e.g. https://www.firefox.com/en-US/firefox/152.0.4/releasenotes/

Re:The new Firefox design is here by avazhi on Thursday October 01, 2026 @06:28AM (#49919956)
> Naive and outright dangerous advice,

Well maybe the brain damaged mozilla devs shouldn't force visual diarrhea down everybody else's throat and then users wouldn't block updates. If only Mozilla's devs could have learned from how people deal with Microsoft and Apple doing similarly asinine redesigns.

Re:The new Firefox design is here by Telaneo on Thursday October 01, 2026 @07:04PM (#49928081)
If users still find that preferable, then that shouls tell you something about how horrible the experience is to users.
Re:The new Firefox design is here by probablyStimmed on Wednesday September 30, 2026 @05:07AM (#49906277)
You should probably use Firefox ESR instead, disabling updates just isn’t an option anymore.
Re:The new Firefox design is here by lopan on Thursday October 01, 2026 @08:07PM (#49928456)
A bit late to the party, but this is how I turned off the gradient...

If your menu bar is hidden: Hamburger icon in top right hand corner > Original profile (or whatever profile is listed there) > Edit this profile > Choose a theme other than System.

If using the menu bar: Profiles > Manager Profiles > Click the pencil icon on Original profile > Choose a theme other than System.

Re:The new Firefox design is here by satya71 on Tuesday September 29, 2026 @03:53PM (#49899386)
Thanks for the config. To their credit the UI change is instant. I double clicked a few times to find out why the old UI looks better.

The old UI has less visual noise (at least dark mode on Windows). The new theme has random highlights and high-contrast lines everywhere that draw attention to the browser UI. I want the browser to fade into the background not stand out.

Re:The new Firefox design is here by cletusw on Saturday October 03, 2026 @06:12PM (#49948294)
You can remove the brightly colored (at least in dark mode) lines above every tab in your userChrome.css with:

``` .tab-context-line { display: none; } ```

Re:The new Firefox design is here by akrakesh on Wednesday September 30, 2026 @06:54AM (#49907105)
And, adding this to userChrome.css removes all rounded corners

    :root {
     --border-radius-small: 0 !important;
     --border-radius-medium: 0 !important;
     --border-radius-large: 0 !important;
     --border-radius-xlarge: 0 !important;
     --border-radius-circle: 0 !important;
    }
Re:The new Firefox design is here by probablyStimmed on Thursday October 01, 2026 @12:10AM (#49917639)
Thanks, that’s a hot tip. How long until it’s mandatory though, I’m wondering.
Re:The new Firefox design is here by fender256 on Friday October 02, 2026 @01:10AM (#49930036)
OMG, thank you so much, I was getting super irritated by the new design which I didn't ask for.