Yeah, use an email relay service like Firefox Relay, SimpleLogin, the one from Proton if you have an account with them (that's SimpleLogin behind)โฆ
You can create email aliases, that will relay the email to your main address. Create a new alias for each website so they can't use your email address to correlate your identity and you can close it anytime, you can even configure an alias to only allow a set amount of messages and auto-close afterward.
Addy.io gives you email aliases as not to expose your actual email address. Everything gets funnelled into a single inbox of your choosing still. And the great thing is that if you use a unique email alias for all services, you know instantly who leaked your email address if you start getting spam. :D
EDIT: Ignore my blind confidence. CAD is (mostly) broken in recent FF versions. (See ivn's reply to this post).
Consent-o-Matic with Cookie Auto Delete and Firefox's Multi-Account Container tabs covers it all nicely for me.
Cookie banners get handled, cookies I don't explicitly want to keep automatically disappear when I leave the site/close the tab, and those I do want to keep can be given their own containers to keep them separated.
I use uBlock Origin's picker mode instead. It lets you select which element you want block. It works on other annoying notices, popus and annoying stuff not just cookie notices
IDCAC should not be on this list since it was compromised, ABP-style. consent-o-matic is probably better but the most direct replacement is "I Still Don't Care About Cookies".
Be careful with using Privacy Badger and uBO together as it might get in each other's way. I had YouTube detect me having ad block until I paused Privacy Badger for YT.
Install the LibRedirect extension and fiddle a bit with the settings to automatically redirect to privacy respecting alternatives away from ad heavy sites.
When the alternative is dealing with the absolute horseshit quantity of ads that YouTube desperately wants to shovel down my throat, I'll take Invidious any day of the week.
It may not be in perfect condition but it's still good enough to use!