stack.js

var render = function(element, items) {
	if (items.length === 0) {
		element.outerHTML = '<p>No links stored yet.</p>'
	} else {
		element.innerHTML = '';
		items.forEach(function(item) {
			var icon = document.createElement('img');
			icon.className = 'icon';

			if (chrome && typeof browser === 'undefined') {
				icon.src = 'chrome://favicon/' + item.url;
			} else {
				// see https://bugzilla.mozilla.org/show_bug.cgi?id=1315616
				var rootUrl = item.url.split('/').slice(0, 3).join('/');
				icon.src = rootUrl + '/favicon.ico';
			}

			var a = document.createElement('a');
			a.id = item.id;
			a.href = item.url;
			a.title = item.url;
			a.textContent = item.title || item.url;
			a.prepend(icon);

			var li = document.createElement('li');
			li.appendChild(a);

			// reverse
			element.prepend(li);
		});
	}
};

getBookmarks(function(bookmarks) {
	render(document.querySelector('#bookmarks'), bookmarks);
});

document.addEventListener('click', function(event) {
	if (event.target.tagName === 'A') {
		event.preventDefault();
		popBookmark(event.target.id, function(bookmark) {
			chrome.tabs.create({url: bookmark.url});
		});
	}
});