What is x3d? Help needed deciphering console crash log For a few days now my Macbook Air seems to hang for a second every five seconds or so. It is only noticeable in my browsers. Chrome, FF and Safari all have the same issue where the browser just locks up for a second before continuing. I looked in console and it is the same crash report being generated every five to ten seconds. The beginning of the log mentions a process x3d:

Process:               x3d [3646]
Path:                  /private/etc/.x3/x3d
Identifier:            x3d
Version:               ???
Code Type:             X86-64 (Native)
Parent Process:        launchd [1]
Responsible:           x3d [3646]
User ID:               0


Did some searching but came up empty handed. I've pasted the full log here:

http://pastebin.com/G9cTLFLR

The issue seems to go away if my computer is offline.

Does anyone have any idea what this is from? 

Thanks in advance!
Try clearing all your cache files for your browsers. I was having the same issue with the same crash log for the last few days. I took it to the Apple Store for that and another unrelated issue with my display. They cleared out the cache folder for Chrome, and the issue quit just like that. No more freezing browser, no more crash logs. I was a little embarrassed I hadn't tried that, when I'd tried just about everything else I could think of. There seemed to be a chrome and/or x3d daemon that was hanging. Hopefully that will clear up your problem as well.