uc.css.js VS Quantum-Nox-Firefox-Dark-Full-Theme

I'm using this script which enchances the all tabs menu functionality of FF.

Woah, this is nicely packaged. Even has "Releases"! Thank you! https://github.com/aminomancer/uc.css.js

Yes. It is possible, but you will have to set up a JavaScript loader. See this GitHub page for more info. https://github.com/aminomancer/uc.css.js

UI customization is fortunately still alive in the wake of XUL extensions.

A /r/firefoxcss mod has a wonderful collection of code snippets that they maintain, which you can browse here: https://mrotherguy.github.io/firefox-csshacks/ and they created a userChrome.js loader here: https://github.com/MrOtherGuy/fx-autoconfig

My favorite customization repository is https://github.com/aminomancer/uc.css.js - which really tests the limits of what is and isn't possible with userChrome.css and .js. My favorite feature is the implementation vertical tabs, without the use of extensions.

Some legacy extensions are maintained and can be found here: https://github.com/xiaoxiaoflood/firefox-scripts/tree/master... (although you will need to use xiaoxiaoflood's userChrome.js loader AFAIK).

Honorable mention goes to the Firefox CSS Store, which can be found here: https://trickypr.github.io/FirefoxCSS-Store.github.io/

Moving to WebExtensions was the logical choice for Firefox, technical/security reasons aside, as they are not alienating extension developers that target Chromium-based browsers.

Yes, they alienated their own extension developers. Yes, they could've handled the transition better, and worked harder towards supporting some of the many APIs/functionalities that extension developers needed (or still need) for their extensions to work in the WebExtensions ecosystem. I myself was quite mad for a very long time at how they handled the switch, but I think overall it's been a success - my own personal feelings aside.

Linux support is pretty good these days and it's just as customizable as Vivaldi. See this repo for an example: https://github.com/aminomancer/uc.css.js

*Firefox multiple tab rows (works in 109.01 https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme/releases

I've been using the QuantumNox dark theme downloaded a year ago, that I've been tweaking for personal preferences. However, that's entirely just been changing values and I would not call myself even a novice at css. Unfortunately, that project has been discontinued and archived, so I cannot ask for support there.

Based on my intuition about a common cause leading to problems for many of us, I decided to look into whether any variable values were set within :root in my chrome directory files. Lo and behold, that was my problem. I simply changed every use of the variables to a constant, and everything worked like a charm.I am using Multirow-Patcher-Quantum-Nox-Installer-Windows-1.8.4.exe from https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme/releases in order to allow multiple tab rows without losing the ability to reorder tabs. I was able to quickly fix the javascript file created with the scrollable rows option (chrome/MultiRowTab-scrollable.uc.js). My first attempt at fixing the autohide file didn't work, but I have only spent a few minutes on it so far.

https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme now has a working patch for FF 101, even an installer. Golden. https://github.com/Aris-t2/CustomCSSforFx is also very, very useful.

Try version 1.8.3 and clear your startup cache (about:profiles > current profile > local folder > startupcache folder > delete all its contents) after closing FF to restart it.

I simply copied the two lockPref lines postet by Wronschien to my config.js file because I already have js stuff coming along with the Izheil Multi-Row-Tabs: https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme/releases which didn't accept a new autoconfig.js and a firefox.cfg.

I use Quantum Nox theme and there's a section in the FAQ that could help you:

Check out an even better option (in my opinion): multi-row tabs

https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Them...

Normally you just need to install this tweak: https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme/releases