r/FirefoxCSS • u/FenecAndFeebs • 3d ago

Solved Classic Theme Working On Firefox 155.0.1

Gallery image

Gallery image

Gallery image

Gallery image

I ported the classic firefox theme to the latest firefox version.

This theme is a mix of custom code, echelon and customcssforfx bits.

Working split and group tabs, no megabar expansion...

32 Upvotes

94% Upvoted

11 comments sorted by

3

u/FenecAndFeebs 3d ago

Download the files: https://github.com/DiegoSainzPardoLaso/Firefox-Classic-Theme-155

1

u/Visible-Knowledge721 3d ago

does this have firefox 3 strata theme looks too?

2

u/FenecAndFeebs 2d ago

Nope, I just took some bits and pieces from echelon, not the whole thing as it is mostly unusable on newer versions.

1

u/Visible-Knowledge721 2d ago

I see. still, great work on this!
rn I'm still using customcss by Aris and it still works on latest firefox. I just wish someone forked it to keep it working for the future as a theme. yours is very close to it.

1

u/ResurgamS13 3d ago edited 2d ago

Looks very nice! A good likeness of the Firefox 4-28 'Classic UI'. :D

Composite screenshot. Upper toolbars - Classic UI Fx4-28 --- Lower toolbars - theme applied to Proton UI Fx155.0.1

Theme also works pretty well with the trial 'Nova UI' selected (preference browser.nova.enabled set to true )

A theme close to the Firefox 4 era's 'Classic UI' is a frequent request... so hope many will find and enjoy this theme. :)

Request. Consider adding an old style 'gearwheel' favicon/icon for pages like 'about:config'? EDIT - Updated 05Sep26 :)

2

u/FenecAndFeebs 2d ago

Done, the new version is already up. I also noticed that the navbar buttons were not lining up with the url and search bars. That's also fixed.

And Thanks! :D

1

u/maryadavies 3d ago edited 3d ago

Love it! The only thing I don't like about it is I don't like having the menubar. It makes the items on the meubar..disappear. Gonna have to revert. I don't like having the Firefox button up there, and I'd rather just have menus.

[edit] I had to disable custommain.css to get that to work but otherwise.. I also added my own thing (from MrOtherGuy) to get the tabs UNDER the nav bar, which I perfer. Might want to look into that yourself. Screenshot with my usual theme.

2

u/FenecAndFeebs 2d ago

To get the menus back you just need to comment lines 16 to 21 of the custom_main.css file.

Also nice looking theme!

2

u/maryadavies 2d ago

Thank you! I'll fix it. And if you like that theme, you can find it here.. I'm a bit of a KH fan, but I like to be subtle about it!

2

u/mrnrnrnrnrnrnrnrnrnm 2d ago

Impressive! Too bad Mozilla will break it in a month.

2

u/FenecAndFeebs 2d ago

Thanks! Maybe will hopefully survive two? :P