Good at blocking mishaps, but it over-doing it on some websites. For example, none of the ebay's websites is functional due to Disconnect blocking it.

Attention: it blocks some functionalities on Ebay!
I wasted a lot of time trying to figure out why ebay didn't load my pictures, it was fault of this addon...

I'm concerned, because googletagmanager.com is not blocked anymore. On the one hand, I can understand the arguments [1], as Google Tag Manager is not a tracker itself, and it's fine for me to unblock it. BUT the domain googletagmanager.com is also used to serve retargeting scripts and Google Ad scripts. This aspect is not mentioned at all in the discussion [1], which worries me even more!

[1] https://github.com/disconnectme/disconnect-tracking-protection/issues/31

i just wanted to see how it can control my universal ads

For an extension that's supposed to be about privacy, the fact that the permissions have changed to now require "unlimited storage of client side data" is incredibly suspicious.

Would be great but often "forgets" what I whitelisted on FF. No problem w/Opera or Chrome, but I don't want to use them as they're less secure. Since I disabled this on FF opening browser is faster because my home page isn't blacklisted by this ext. Yes, I even whitelisted my homepage in FF options. Running Windows. Give me a solution and I'll gladly change my review. Using other quality priv/sec ext.s so not flying naked, but this was, could be a nice layer. Yeah, I saw the instructions about installing it before other P&S ext.s. Still "forgets". This is review is meant to be constructive, not negative. I know these ext.s are hard work.

This extensions apparently is not maintained: it hasn't been updated in two years; also, it has some no longer used code, e.g. /data/services.js is no longer used because the data was moved to /data/services.json. Furthermore, Disconnect is rather limited in features compared to uBlock Origin, AdGuard, Adblock/Ablock Plus, etc. Specifically, it uses domain-based filters, so is unable to block site's own tracking. You might as well install a hosts file and/or block third-party cookies and get pretty much the same result as with Disconnect at a fraction of resource use.

I noticed the 'show counter' box rechecks itself, usually after a reboot or two, so that the number of tracker requests eventually reappear on the menu bar icon. I've unchecked the counter box any number of times.
Edit: Also noticed the drop down menu sometimes doesn't render as it should. Have tried removing the addon, quitting FF and reinstalling but without success.

Good, but not good enough. This add-on blocks any 3rd party cookies on the current domain. But it doesn't work in more complex scenarios. When you log in to some web site via Facebook, Google or similar provider, after login completed, the cookies set by these authentication services - Facebook, Google etc. - remain set.

This blocks embedded Twitter images from showing on many web pages, such as on Huffington Post pages. And there is no option to change that, other than disabling Disconnect. And I am not sure this addon is needed anymore since Adblock Plus also has options to block tracking. And their options don't block embedded Twitter images from showing on pages.

Disconnect always used to block ads. Then a year or so ago it stopped working with Firefox. After a very long period of time it re-appeared, fixed. Trouble is now it lets ads through when a page loads, but when the page is refreshed the ads disappear. So I don't know whether it's stopping sites tracking me, which I guess is its core purpose.

Edit (Oct 29): Tried re-installing, didn't fix it.

March 15, 2018: Any progress on a fix for this? I've been very patient.

効果がいまいち分からない上に
有効化するとツイートを別のサイト上で表示できなくなる。
除外設定の方法も不明。

I used Disconnect (alongside Privacy Badger) for a few weeks.

Too many parts of the GUI are ambiguous so today I disabled the extension.

I use Firefox 52.1.1 ESR and the behaviour is the same as previous versions of FF. It has varied from NO icon, to an icon that looks like a puzzle piece. Either way, there's no way to do options at all. Not worth using if there's no options or display that contributes. This has been going on for quite a while now with nothing done to help this. Why?

Doesn't work on the Facebook website itself. Too bad.