I’ve switched Chrome ad blockers to µBlock, which claims to be lighter weight than AdBlock and AdBlockPlus. Also the author is a slightly cranky open source guy who refuses to even take donations, and I like that. So far my only complaint is a few pages don’t load well and a couple of ecommerce things failed unless I disabled it.
µBlock’s tools for understanding stuff aren’t bad. If you right click the icon and choose “Options”, there’s a “Statistics” tab where you can reload a page and see what was blocked and by which rules. It doesn’t show which ruleset contains the rule though, so you have to hunt for that.
I think it’s hilarious that Chrome’s New Tab page blocks 3 requests, all matching the rule google.*/gen_204?. Tracking images? The new tab page loads like 15 other resources from Google that are allowed.
Update: the Krebs list was commented out with a datestamp of 2014-10-29, two days before I wrote this blog post.