If you use Chrome or Firefox browsers for BF3’s Battlelog, you might like “Better Battlelog”.
It’s a great extension to Battlelog that adds a bunch of nice features like weapon statistics with symthic.com integration, Bf3stats.com integration and one of my favorites ... “My Filtersets” (savable filters).
Here’s their feature page ... http://getbblog.com/en/features
You can quickly install it here but you need to be using Chrome or Firefox ...
(If you see a big DOWNLOAD banner near the top of this page, don't click on it. Just look for your browser version below it.) ...http://getbblog.com/en/download