FlyingFox
An opinionated set of configurations for firefox
...Takes up the least space, and expands when hovered. Permanently expanded. Can be toggled with a shortcut. ( ctrl+shift+a > TST > right top cogwheel > extension shortcuts) Supported extension icons are changed, and a mask(generated for custom color with webapp) is applied to unsupported ones to blend them better with rest of the theme. Switch window-controls to right. Along with vertical tabs, traditional horizontal tabs are also included.