What email provider are we talking about?

I will write some e-mail.providers. It a google with e-mail @gmail.com, and @yandex.ru, @mail.ru, and even e-mail my site. For every provider - the same problem. I think, may be a problem with browser? My firefox on ubuntu system... I'll try reboot on windows now and try change e-mail on windows

This not working for browser in Windows to. Some strange...

In some time, after another yet trying, browser was suggest e-mail on @yandex.ru. I'm happy!