Tab-Search-and-Manage/src/scripts/eventListeners.js

// Set click events for tab blocks
document.addEventListener("click", (e) => {
    var target    = e.target;
    var targetID  = target.id;
    var parentElm = target.parentElement;
    var id        = 0;

    if (targetID == "closeBttn") {
        id = parseInt(parentElm.getAttribute("tabID"));

        browser.tabs.remove(id);

        parentElm.parentElement.removeChild(parentElm);
    } else if (targetID == "iconElm" || targetID == "faveIcon") {
        if (targetID == "faveIcon")
            target = parentElm.parentElement;

        id = parseInt(target.getAttribute("tabID"));
            browser.tabs.update(id, { active: true });

        oldElm.setAttribute("class", "block");
        oldElm = target;
        target.setAttribute("class", "block block-focused");
    } else if (targetID == "goTop") {
        window.scrollTo(0,0);
    } else if (targetID == "goBottom") {
        window.scrollTo(0,document.body.scrollHeight);
    } else if (targetID == "goToTab") {
        // Go to selected and 100px up
         oldElm.scrollIntoView();
         window.scrollBy(0, -100);
    } else if (targetID == "newTab") {
        createTab();
    }
});

document.getElementById("searchBar").onkeypress = function () {
    searchTabs();
}