New Update Mozilla seems working on a big Firefox redesign 'Nova', here is what it looks like

[silversurfer]

Mozilla is working on a huge redesign for Firefox, internally named "Nova," featuring strong curves that aggressively round off the tabs and the address bar, pastel colors, a refreshed new tab page, floating "island" UI elements, and more.

Sören Hentzschel, a web developer and author of several open-source extensions, shared these early mockups, but the final app could end up looking pretty different since actual development has only just started.

From the mockups, it appears Mozilla took some inspiration from Google's Material You (or at least, the dynamic color extraction part of it) because the browser color accent appears influenced by the wallpaper setting. Choosing a mint-green desktop background automatically shifts the top navigation bars to match that exact shade.

Source: https://www.neowin.net/news/mozilla-is-working-on-a-big-firefox-redesign-here-is-what-it-looks-like/

 

[Parkinsond]

FF is in need for engine redesign, rather than UI one.

 

[Deletedmessiah]

Wrong thing to waste their money and resources on again...

 

[Marko :)]

They just added rounded corners and added the border between UI elements.

 

[Zero Knowledge]

Again with the redesign and tinkering crap, just stick to what you do well which is customization.

 

[MWTSenior]

Gone are the days when UI used to be "classic".

 

[nicolaasjan]

Gone are the days when UI used to be "classic".

Yes, and now I'll have to change my custom css again (if possible).
I use this, but it is not maintained any more...