Tatty Teddy Couple
*Top tip* if you're sick of the search bar covering your background image - right click just above the address bar > click "customize" > click on the search bar & drag it into the customize box and it'll disappear!
Next you need to add some spaces to shorten the address bar. Just drag them to the end of the address bar. I use about 10 - they'll appear as small white rectangles but when you click "done" they'll disappear and just show the firefox persona :)