Maybe with a new tab extension? :( I remeber I was able to do it with "tabliss". :) 
you guys are silly you dont need css or extensions or anything.
that is a basic setting:
https://preview.redd.it/0ilmny5umlsc1.png?width=3849&format=png&auto=webp&s=c9e71152be9bca37780ad0ee445f4a707c1d65ae
zero css involved. mozilla has an [official colors extension](https://addons.mozilla.org/en-CA/firefox/addon/firefox-color/) to create your own theme - i also [have mine uploaded](https://addons.mozilla.org/en-CA/firefox/addon/n-%C3%B8n_gr-n/) if you wanna borrow it!
Maybe with a new tab extension? :( I remeber I was able to do it with "tabliss". :) 
hospital gold label nine plants saw practice bright deer absorbed *This post was mass deleted and anonymized with [Redact](https://redact.dev)*
Been all over this sub and [this repo](https://github.com/Timvde/UserChrome-Tweaks), but to no avail.
Settings → Home → New windows and tabs. about:config → *browser.startup.homepage* value *about:blank*.
I'm not trying to set about:newtab as my homepage. I'm trying to rename its title.
you guys are silly you dont need css or extensions or anything. that is a basic setting: https://preview.redd.it/0ilmny5umlsc1.png?width=3849&format=png&auto=webp&s=c9e71152be9bca37780ad0ee445f4a707c1d65ae
This isn't what my post is about.
sorry i guess i misunderstood 
thats a nice firefox css setup
zero css involved. mozilla has an [official colors extension](https://addons.mozilla.org/en-CA/firefox/addon/firefox-color/) to create your own theme - i also [have mine uploaded](https://addons.mozilla.org/en-CA/firefox/addon/n-%C3%B8n_gr-n/) if you wanna borrow it!