You can see and disable trackers on any website with Ghostery for Firefox. You’d be amazed how many some websites use.
Ghostery is the best! I have it for both Safari and Firefox. It is just amazing to see how long the list of trackers can be.
I use Ghostery and Firefox. Ghostery is very effective. The only tracker I generally see on FR is Google Analytics. click to go to a news site and the number jumps to a dozen and more.