Nothing more to say than what ashleedawg already wrote on March 28th 2019:
"WHO KNOWS what Mozilla was thinking when they took a step *backwards* in terms of empowering users to manage their own Security & Privacy by removing the ability to View Individual Cookies... but the up-side is that it caused me to discovered THIS add-in, which is *infinitely better* than Firefox's old built-in features.".
Fully agreed!

Seems like a good addon in regards to easily managing cookies, but would it be possible to add an automatic clean up option as soon as you leave the site?

Great job

Cookie Quick Manager is one of the best addons by Ysad

Doesn't work with 67.0.1 (64-bit) version.
While opening "Manage All Cookies" the list of domains is empty.
Answer from the author:
Go to the add-ons page, click on the "Cookie Quick Manager" add-on to get to the details page for the add-on, scroll down to the part that says "Run in Private Windows" and select the "Allow" option.
Until I did this the "All" context would not show anything and some of the other contexts would also be missing cookies. I assume this is because when it tried to enumerate all the cookies, it would hit the "private" cookies and was denied access and instead of just continuing it would halt/crash the add-on.

opt-out of ads speeds up WWWeb somewhat !

http://www.youronlinechoices.com/de/praferenzmanagement/
https://www.optimizely.com/legal/opt-out/

just disable all domains there so you get 130+ opt-out cookies.

with these in place and google analytics opt-out add-on Websurfing speeds up noticeably even with uBlock in place.

save + restore (or protect from pristine profile) the opt-out cookies for fast web.

there isnt ability set any cookie read only like Cookiemanager+