The Shaman topic earlier today prompted me to check the Firefox (28.0) browser console. Here are some of the more "interesting" errors that were recorded while I was playing my level 31 Ranger:

Unknown property 'box-sizing'. Declaration dropped. www.nevergrind.com
Use of getPreventDefault() is deprecated. Use defaultPrevented instead. jquery.min.js:5
Error in parsing value for 'background-position'. Declaration dropped. www.nevergrind.com
TypeError: mob[(Slot - 1)] is undefined java2.js:8068
Error in parsing value for 'width'. Declaration dropped. www.nevergrind.com

I didn't see anything wrong while I was playing, but I was killing light blues and everything was a bit of a blur.

When you use that thing it is full of a crap ton of meaningless messages. 99% of the time the only ones worth looking at are the JS (javascript) Errors and the Net section (for files that didn't load etc). All of the weird style messages are worthless. Though that:



I should look into that. That's a bug.

Ah, trueshot has a targeting bug. Fixing in patch in like 30 seconds.