To get cool translucency, dimming of inactive windows++ on any window manager, including Firefox and i3, I use:
compton -bcCGf -i 0.8 -e 0.8 --no-fading-openclose --sw-opti
To get cool translucency, dimming of inactive windows++ on any window manager, including Firefox and i3, I use:
compton -bcCGf -i 0.8 -e 0.8 --no-fading-openclose --sw-opti