Feature-rich, cross-platform, free (no strings) = Utterly Invaluable. There aren't enough stars in the sky for this guy, so I'm afraid these 5 will have to do. Thanx So Much, Dev. You rok.
Extension that notifies you of new e-mails received at your InstAddr e-mail address
Pop-up notifications will notify you when an email is received at the email address you have obtained from InstAddr
You can create and automatically enter a Disposable E-Mail Address with a single click by right-clicking in the input box on the site
InstAddr is a highly functional disposable email address service available for PCs and smartphones (Android, iPhone, iPad, Kindle Fire
)
You can get as many e-mail addresses as you want with one click, and delete them as soon as you don't need them any more