3 ms·
It's not as extensive as what you describe, but in case you happened to be unaware, you can customize the Firefox (and Thunderbird for that matter) UI fairly si
by duskdozer 8d ago
It's not as extensive as what you describe, but in case you happened to be unaware, you can customize the Firefox (and Thunderbird for that matter) UI fairly significantly with userChrome.css: https://support.mozilla.org/en-US/kb/contributors-guide-firefox-advanced-customization https://support.mozilla.org/en-US/kb/contributors-guide-fire...