Lightbeam for Firefox - Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Challonge - The Ultimate Source for Tournament Brackets

island - a free and opensource alternative to parellel space

smash.gg - An esports platform empowering bottoms-up growth of competitive communities with value-add services...

AllAccounts - AllAccounts is an extension that allows Firefox to connect to websites using different user names.

BracketPrint - Create Round Robin, Single and Double Elimination Brackets for Tournaments print and use it for free. - Generate your bracket now.