Make Bootstrap 3 remember which tab they were on. Works only with one set of tabs.

BootstrapLastTab.js

var $tabLinks = $('a[data-toggle="tab"]');
if($tabLinks.length) {
    var lastTab = localStorage.getItem('lastTab');
    $tabLinks.on('click', function (e) {
        //save the latest tab; use cookies if you like 'em better:
        localStorage.setItem('lastTab', $(e.target).attr('href'));
    });
    //go to the latest tab, if it exists:
    var $target = lastTab ? $('a[href="' + lastTab + '"]') : $tabLinks.first();
    $target.tab('show');
}

BootstrapLastTab.min.js

var $tb=$('a[data-toggle="tab"]'),LS=localStorage,LT;if($tb.length){$tb.click(function(e){LS.setItem('LBT',$(e.target).attr('href'))});((LT=LS.getItem('LBT'))?$('a[href="'+LT+'"]'):$tb.first()).tab('show');}