I've relied on Ghostery for years to give me granular control over trackers. As an online seller, I need to enable certain trackers on certain sites only, so the global blocking offered by other privacy managers doesn't work for me. HOWEVER, I'm having issues with the add-on for Firefox on Android (Nougat on phone; have settings in Lollipop on tablet). It shows me bunches of trackers, some of which are definitely nonessential and are flagged as slowing down the browser, but there is no ghost icon and noplace to access settings so I can block trackers by class or block/trust individually the way I can on my desktop. In addition, I keep getting a Firefox popup on my phone saying that Ghostery's script is unresponsive. So 5 stars for desktop but not so many for phone.

Keeps Unsolicited Adds & FACEBOOK Junk out of my computer! Thats a GOOD THING!

欲しくもない、広告が減って快適になりつつある。

It's custom options to block and unblock individually is awesome

You should definitely use uBlock Origin.
It's open-source, doesn't sell your data and not part of Cliqz.

It's not possible to remove the purple circle in the version for Firefox on Android. The thing is useless and should be off by default anyway. Good add-on otherwise. Unlike ad blockers it blocks both ads and trash scripts that websites are clogged up with, and it does it without using any resources. Speeds up browsing so much it was the only way to use a 2004 laptop for internet. Some people say it sells your data but I couldn't care less about that.

Edit: What I said was assuming you turned off the new three options "enchanced blocking" and the other two in custom setup. If you blocked the trackers you wanted to block then those options don't serve a purpose and they slow things down.