> I had this problem. Solution was to install a Chrome extension called "StayFocusd" and really lock down what it allows me to look at.

Good idea. I just did a search and found something similar, but with a twist, for Firefox: Forest. Seems to be trading addiction for gamification / reward of growing a virtual tree. :P

https://addons.mozilla.org/en-US/firefox/addon/forest-stay-f...