A service like this is necessary, so the idea is good although certainly not new: there are already dozens of temp email sites, and this is no better. The domain name gives it away immediately, so it's a matter of days for the spammers to add relay.firefox.com to the list of "invalid" email address they won't accept for signing up.

What we really need is temp addresses with a legit domain! For example, @mozillamail.com would be fine, as long as it provides real addresses too - just like, say, gmail. What matters is that the same domain hosts both temp and legit addresses, so the spammers can't tell temporary from legitimate. Yes, it's probably harder on the server. But short of that, such a service is nearly useless, as is the extension.

If/when done like this, users will want an easy way to reply to the spammer from the legit address via the temp address, without leaking the legit one. Now _that_ would be something that doesn't exist yet - at least not in an easy to use form. By "easy to use", I mean POP3/IMAP support and a transparent mechanism for the user.

Love not having to give my actual email address to garbage companies now, even my spam ones are worth more than their dirty tactics. The only improvement I could ask for is if you could make it so I can click the icon beside the address bar and directly copy aliases from there. Other than that, bang on.

Edit: 8 months on and you still have to open a new window to copy/paste your generated aliases. Come on devs, I know you can do better.

I love it, but some bugs are really annoying.
It ruins lot of input fields, even basic website such as Google. I can't wait for improvement, really nice extension. :)

it's really helps! and great! and just works! best product of mozilla

It used to work just fine, but now it stopped forwarding registration/email confirmation emails. Well, it says that it forwards them (the "Forwarded" field is incremented), but no emails arrive in my inbox. Surprisingly, pure-text emails from my other email addresses arrive normally.

Reply 1: I use ProtonMail. And yes, I did check spam and trash and every other folder - it's not there. Also, pure-text emails stopped getting forwarded too :(

Late edit: works perfectly fine now.

This extension is great if you want to subscribe to newsletters and then forget them or you don't want to give your main email to a website.

Like others have said - I love the idea, but just doesn't work for enough sites that I want it for (mostly social media or adult-oriented websites).

Update - doesn't work with Flickr

Absolutely love this idea! Works great. 2 things of which I know one should (hopefully) be an easy fix and the other, more a feature request.

1. Can we have a list of the aliases that were created easily accessed so we can fill out email forms easier? It seems that when I want to use an alias I have leave my form and to go into the "manage aliases" page and the copy from there. There should be easier method to access our aliases to fill out the form.

2. Any way to respond through the alias? I know if I expect to receive an email that may be interesting, I may want to respond back, but still not with my own email address.

Thank you regardless for this awesome extension and hopefully it will only get better with time!

I love the idea.

Love this idea, very useful for when you need to make a one-off account or when you're not sure a website is trustworthy. Will be so much more useful when we can make more/unlimited aliases.

This is just brilliant. Registering for services online without having the concern of some data breach leaking your private mail address or dealing with a company that sells your e-mail address to third parties. Good job Mozilla!

The concept is good but I'm not receiving some confirmation emails when I use the relay to subscribe on a website.
Reply 1: Updated rating since everything seems fixed now :)
However, as some mentioned, it would be ideal for the widget to directly display the relay address and have the option to copy it.

Works fine.
One problem: it is very hard to copy emails from the manager if you have clipboardevents disabled, please auto select the email when pressing the copy button to CTRL+C it.
Also it would be better if there was no subdomain in the email.

This service is a great idea in principle and I hope it helps funding Firefox. But I already found sites that are blocking these alias email addresses, probably because it's too easy to simply block the relay.firefox.com domain. I'm not directly blaming Mozilla for this but hopefully new versions of the service will make it harder for sites to block the aliases.

Ottimo servizio! Da avere assolutamente per evitare lo spam in siti dove ti registri per prova

I like this extension, but it could be a bit better if you could choose which email address to forward emails to if you have any secondary addresses in your account.

Better yet, there could be the option to manually type the email address in, allowing you to choose whichever one you want. However, I understand if the developers don't want to add that feature because of the risk for abuse.

Also, if there is a way for Mozilla/Firefox Relay to tell me when a message that was supposed to be forwarded was blocked because it was too large, I'd like this extension/service even more.

I'm happy with how this extension is currently, but I still think it has some room for improvements.