It’s a little known fact that you can CTRL-TAB between tabs in Firefox (in a similar way to ALT-TAB on your Windows). What’s even more unknown is that you can set up Firefox to give you the previews in Firefox too.
In order to do this pop into your address bar and go to about:config. After telling Firefox you like living dangerously, find
browser.ctrlTab.previews
and set it to true.
Once you’ve done this, CTRL-TAB and you’ll be able to preview and search all your open tabs.
Great Tip! Cheers!