Relay is great. however Apple iCloud doesn't seem to accept forwarded emails from the relay. so atm I would advise others not to use it with their Apple iCloud Accounts. (Spam filter?) emails aren't even showing up in junk so apple is straight up denying these emails in from the relay.

Just one little problem. I can't login to my Wolfram account (account.wolfram.com) with the extension enabled. Weird.

Great Idea

while there is option to create new alias, while filling a form, it will be good to have an option to fill existing alias. May be someone want to use 1 alias at multiple site.

This extension is absolutely great! Only one page broke due to this extension: https://sacola.magazineluiza.com.br/#/cliente/login/?next=/acompanhamento/&origin=magazineluiza

When trying to login, the email input field on the left stays on top of the reCaptcha prompt, which makes it impossible to read what I should click on.

Good work Mozilla!

So far, so good.
Work as expected.
Easy setup.