For annoying cookies popups you can try this https://addons.mozilla.org/it/firefox/addon/i-dont-care-abou...
Re:Firefox Multi-Account Containers
by Red_Leaves_Flyy on Tuesday January 14, 2020 @04:12PM
(#22049313)
Or just use ublocks existing filters that catch these...
Or both: Use 'I don't care about cookies' list in uBlock: https://www.i-dont-care-about-cookies.eu/abp/
The lists for cookies in uBlock Origin never worked for me, I don't know why. It was the first thing I activated on new uBlock installations, now I don't even care to do it.
I also use containers.
Hide the popups with uBlock Origin. You pick the element with an inspector like tool and they are gone forever. Also use Cookie Autodelete to remove any information they attach to your browser.
If you really care about a site, make your choices in the cookie popup and grey/white list it in Cookie Autodelete.
I have it configured such that middle-click opens links in new containers, and left-click opens in the current container.