I’d like to introduce a new segment to my blog today called: “Really, Facebook? Are you serious?”
Point in question: the facebook logo in the upper-left corner of my Facebook homepage.

More specifically, the shockingly blurry and poorly scaled facebook logo in the upper-left corner of my Facebook homepage. Thousands of employees (supposedly), many of them über-smart people poached from the likes of Google and Microsoft – and that’s the best you can do?
Now, maybe you’re saying this is a browser problem and it’s because Facebook uses a clever and unusual font, but this is the first thing I see with pretty regular Firefox settings, and no other website seems to suffer from this same problem.
But, in all fairness, I am a crotchety old curmudgeon, so maybe my blood sugar is just too low or something.
But the point still stands -- that's with my default setup and it's glaringly bad. I tried a bunch of other sites and nobody was even close to being as unperfeshunnal looking.
But the memcache bug that causes facebook to regularly duplicate news feed entries is much more toxic, I agree.



I bet your "zoom" was set up a little bit in Firefox. It is easy to accidentally "zoom-in" in firefox sometimes and it will stay like that until you change it.
This will scale all the fonts up a bit (which still look sharp because they are vectors) but can render images fuzzy because they are being enlarged a bit.
If you want larger text without affecting the images set view->zoom->zoom text only.
I'm sure you can come up with other valid facebook complaints