Your color selection was painful to my eyes. I use firefox. But somehow you pallete of blue on black was really annoying. I am sorry but my reaction is so strong, I cannot imagine why you would do that.
Believe it or not it looks just how I like. But I plan to make the theme selectable on the site at some point and I could make the default theme more conservative. I use firefox too. I'm a programmer and look at screens late in to the night and bright sites are painful to my eyes after about 10pm. I love to read the feeds on a dark subdued screen rather than on a site crowded with distractions and colors. Sorry to annoy you, maybe it's like a song that annoys you the first time you hear it and then later you can't get enough it is so refreshing and different. :)
http://filtercurve.com