1. FoxTrick

The best extension Browser developed forFirefoxChromeWork andSafari.

2. FoXRay

Extension for Firefox that allows the complete management of the team directly from browser.

3. HTPE

The best extension available for Internet Explorer, is enabled via right click.

4. LiveFox

Excellent match viewer for Hattrick. It works on Firefox version 1.5+.

 5. 

Recommend a plugin for Hattrick to be included in this ranking.