I’m migrating from Brave. I have a whitelist of (sub)domains that I allow to save cookies, a blacklist that’s never allowed, and the rest get deleted when I close my browser.
I ported this list to LibreWolf but I cannot find an option to view exactly which domains are setting cookies. For example, on YouTube, accounts.youtube.com is enabled to keep me logged in. But when I click the settings icon on the search bar, it only gives me the option to delete cookies for youtube.com and doesn’t list which domains are setting cookies. This is fine for youtube because I already know but not alright for new websites that I might use.
The rules doesn’t accept regex either. So if I want to block accounts.google.com, I cannot block *.google.com. I have to block the domain and all the subdomains individually. Which is even harder because of the first issue.
I don’t think Firefox has this feature. Probably because it requires constant care and maintenance not to end up breaking websites.
Personally, I use temporary containers. Basically, every new tab has a new cookie store (that gets auto-deleted after the last tab closes), unless I open a site in a specific container (built into the browser, but this addon by Mozilla actually makes it usable) that allows for long term logins. This way, third party cookies are essentially isolated and irrelevant, because even two tabs right next to each other, rendering the same domain, will have different cookies.
This also made it essential for me to get Consent-o-Matic, because every “please let us sell your data” popup will show every time you load a website.