[alpaca128]

For people who don't spend time sorting and managing their bookmarks, tabs can be an equivalent alternative. Modern browsers will search and suggest both bookmarks and open tabs, so the UX is pretty much the same. Just that unsorted bookmarks are hidden somewhere in a separate menu/window, a bookmark bar would shrink the available space for web content. The tab bar is always there and a huge list of tabs tells me at a glance that I might want to get rid of old stuff.

> But the URL is gone when a tab is closed.

Accidentally closed tabs can be easily restored for as long as you don't delete the history. And when I reinstall a system I just restore the profile directory from the backup and Firefox will start with all plugins, settings and tabs from before.