Don't harass poor Novindu.
Yesterday I tested Firefox 2.0 and Opera 9.0.2 website loading speed. I loaded a website (
www.alienware.com) which wasn't loaded ever before in Firefox (to eliminate the effects of caching). With the tweaks, Firefox loaded the page 2 seconds faster than Opera. Enough said.
There are two things I hate in Firefox though. Slow startup times and dropping into a never ending loop every now and then. When the latter happens, there is nothing I can do, but open up task manager and kill Firefox. That bug has been there since 1.0 days, and still those people haven't found a way to correct it

One day both Firefox and Thunderbird together crapped up my CPU; one CPU core for each LOL.
The best thing in Firefox that none of the other browsers have (except Mozilla web browser) is extensions. Not only I have tweaked the Firefox's internal settings, but those extensions add a lot of value. I have an extension called Flashblock, which blocks individual flash animations from loading (remember, from LOADING, not from SHOWING). This saves bandwidth. Also I have an extension called adblock where it stops ads or anything blockable. We can specify what to block. This also helps the page loading times a great deal.