wataf1

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

/* Please forgive my shitty css, I'm not a web dev 

Links:
https://www.reddit.com/r/FirefoxCSS/
For live debug: ctrl+alt+shift+i, grant remote permission, StyleEditor > userChrome.css
https://www.reddit.com/r/FirefoxCSS/comments/73dvty/tutorial_how_to_create_and_livedebug_userchromecss/
https://github.com/Timvde/UserChrome-Tweaks/blob/master/tabs/hide-tabs-windows.css
https://www.howtogeek.com/334716/how-to-customize-firefoxs-user-interface-with-userchrome.css/

wataf1

/* This goes with mixed theme*/
.tab {
    background-color: #e2e2e2;
    background-image: url("https://i.imgur.com/l7XdlAC.png"); /*can't figure out how to use a local image here */
}
  
.tab .label {
  font-size: 10px;
  font-family: "Segoe UI";
  font-stretch: condensed;

wataf1

function getTabsToClose(tabs,args) {
    var foundActiveTab = false;
    var toClose = [];
    function checkTab(tab) {
        var add = args === "above" ? !foundActiveTab : foundActiveTab;
        if (add) {
            if (!toClose.includes(tab.id)) {
                console.log(`Adding ${tab.id} - "${tab.title}" to toClose.`);
                toClose.push(tab.id);
            }            

wataf1

function getTabsToClose(tabs,args) {
    var foundActiveTab = false;
    var toClose = [];
    function checkTab(tab) {
        var add = args === "above" ? !foundActiveTab : foundActiveTab;
        if (add) {
            if (!toClose.includes(tab.id)) {
                console.log(`Adding ${tab.id} - "${tab.title}" to toClose.`);
                toClose.push(tab.id);
            }            

wataf1

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.IO.Pipes;
using System.Linq;
using System.Management;
using System.Net;