Firefox is the best browser because of the addons and some features. I'm currently running 3.5 beta 4, and it has quite some improvements from 3.0/3.1(was running 3.1 beta, but I don't know whether 3.1 became 3.5)
The list of active addons printed by mr Tech Toolkit(and I removed the unused and obvious ones(like java etc)):
# All-in-One Sidebar 0.7.10 - very organizing
# British English Dictionary 1.19 - quite useful when typing
# Cooliris 1.10 - nice thing to search for images
# DownloadHelper 4.4.1 - useful when downloading things
# Extended Statusbar 1.5.3 - useful when downloading things
# FaviconizeTab 0.9.8.2 - useful to make your tab-bar smaller
# FlashGot 1.1.9 - nice for using download mangers
# GooglePreview 3.21 - always nice to see where you're going
# Greasemonkey 0.8.20090123.1 - I use it to make google black
# HashColouredTabs+ 0.4.21 useful for identifying tabs(it almost seems a normal feature)
# Image Toolbar 0.6.5 - useful for downloading images
# MR Tech Toolkit 6.0.3.3 - useful for installing firefox 3.0 addons that work perfectly on 3.5, but don't say they support it
# PDF Download 2.2.0.2 - I just hate having to open pdf's in my browser
# Right-Click-Link 1.1.3 - I also hate pressing Ctrl-C Ctrl-T Ctrl-V Enter
# Speed Dial 0.9.0.3 - The most useful homepage ever(AG is one of my 16 dials)
# Status-bar Scientific Calculator 4.5 - I always want to calculate things without having to boot up calculator
# Tab Scope 0.2.2.11 - Another way to see where you're going
# United States English Dictionary 3.0.3 - English isn't my native language
# Update Notifier 0.1.5.4 - Good for quick installs of updates
# WOT 20090325 - I just always want to know whether a site is obtrusive
I use the theme NASA Night-Launch, because it's black and it fits perfectly in my windows skin.
Anyway, you see that I'm quite a firefox-enthusiast.
(Have you already tried putting in about:robots and about:mozilla in your address-bar?)
