Rain
AdBlock - I can't be thankful enough for that software! Not only does it block those ads, but it also allowed me to hide "Trending" on Facebook, which was a major source of daily despair for me...
Yeah, it's a great tool for sure. I always use it to block those annoying Tweeter, FB, G+, etc buttons infecting the web. Also I've blocked all sorts of things that were just simply causing me visual distress like yesterday when that nice fellow was having problems with his avatar and it was hogging half my vertical screenspace. I blocked it with ABP until he sorted it out and then unblocked it. Brilliant!
As far as facebook I rarely log in anymore because it's gotten so intrusive, slow and clunky over the years but it seems the only way to get a hold of many of my friends.
But I discovered the trick to having a far less annoying FB experience. I just use the mobile version of it and all that crazy annoying stuff goes away. It's a weeee bit harder to navigate and look at large comment threads but it loads WAY faster and isn't a pile of javascript barf all over the place. Also the only "ads" I see are mostly text based "Sponsored" stuff in the timeline which is easily ignored just by scrolling past them.