Safari Icon
Free Flat Icons
Commercial usage: Not allowed
Firefox Icon
Purple Lines Icons
Lipse Greyscale Icons
Opera Icon
Lone Shadow Icons
Commercial usage: Allowed
Mac OS Apps Icons 4
Mac OS Apps Icons 3
Flat Icons Add-on 2
Ray-Tech Icon Pack
Crispy Icon Pack
Black Glass Icons
00 cctld ie Icon
World Flags Icons
Kare Web Browser Icons
Simplum Icons
Light Icons
Soda Red Icons
Chrome Icon
Browsers Icons
Flat Icons
Boxed Metal Icons