I have Fennec installed, but I rarely use it. It's not really "fast enough" for me yet. I prefer Tear over MicroB over Fennec. Once Fennec is finished, I'm sure it'll be a really great browser to have in place instead of MicroB, but even then, I'll still be rooting for Tear as it's, to me and quite a few others, the fastest browser available and still very compatible.

I like Fennec, don't get me wrong, but I'll wait til it's faster/more compatible to really dig in.

Jesse~