If your wanting firefox extensions, the best list of them are in this following sticky: http://www.hardwareforums.com/firefox-extensions-tweaks-11470/ Hope this helps :chk:
I saw someone write a detailed review about Opera, Firefox and IE 7 and they criticised Firefox for not having a single button to make a new tab. They obviously didn't know that you can add many more buttons if you right click the back/foward/home bar and click customise.
Yea, i got the button on the toolbar, all you had to do was right-click on the toolbar, click customize, and drag the "new tab" button on the toolbar
You also take a look at Seamonkey and a new fast browser called K-ninja.... nice choice in avatar's...