The extension does exactly what it says it does - and the background images from Unsplash look amazing and beautiful. The inspirational quotes are lovely and make you contemplate a bit about life. Only small issue I have is that the clock text is hard to read on light wallpapers, but I haven't experienced any other issues other than that.

Mindblowing possibilities

My favorite: You can upload so many backgrounds for your browser as you want... Tabliss automatically changes between them everytime you open a new tab

You can add time, weather, search, short-links in order to customize your tabs

BEST

Amazing work ! Can't believe this outdo almost everything I tried. The only things that are missing are calender sync and task sync but I understand it's another type of work. Maybe Mozilla should think integrate natively this addon