They accept individual donations and corporate sponsorships, and they also sell some stuff: http://getfirebug.com/contribute http://getfirebug.com/contribute (

They accept individual donations and corporate sponsorships, and they also sell some stuff: http://getfirebug.com/contribute http://getfirebug.com/contribute (You probably know that already but I am mentioning it for people who don’t. I had never thought of Firebug and donations myself until I saw a message during an upgrade about a month or two ago.)