If you want to be different and have your tab bar at the bottom of the window, it can be done. You will need to modify your userChrome.css file (best if done with ChromEdit Plus) by adding:
/* Display the tabbar at the bottom */ #content > tabbox { -moz-box-direction: reverse; }
The Firefox Extension Guru's Blog 
thanks for the tip!
thanks for this tip, I have used netcaptor for years with explorer and I have gotten used to tabs at the bottom. your tip has helped me heaps.
Other useful things that I take for granted with netcaptor is grouped tabs, where you can “group” your favs and then load them together.
As well as “domain completion”, and “quick search” any netcaptor users who know how to do these things, please let me know
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