iComment Button Download Center
Free - Internet Explorer 6 & 7 (and Firefox 1.8 & up if auto-detected on your computer). 
Internet Explorer version. If you have Firefox 1.8 or above, this fast install will add the button there too. Easy - Auto installs both in a few clicks. (2.3MB - 15 seconds on DSL)
Free - Mozilla Firefox 1.8 & above.
Firefox Only. Supports Mozilla-based browsers (Mozilla, Mozilla Firefox 1.8 & up, Iceweasel). When installing associate with firefox.exe. (69k - 5 seconds on DSL)
