Created attachment 627536 [details] linear gradient is awful in gray buttons The install and installed buttons have awful gradients on my Galaxy Nexus running latest nightly Firefox. The gray gradient also shows up on the category filtering buttons and looks bad there too. If CSS gradients don't work here, perhaps we should move to images.
Created attachment 627539 [details] blue buttons too the gradient on the blue button is also bad. Not as bad, but certainly not smooth.
IMHO, this is looking *much* better now.
Fixed by new designs. Verified on https://marketplace-dev.allizom.org/ on FF18 (Win 7) Attaching postfix screenshot. Closing bug.