Good

Gmail window is too big. I want resize it as in Chrome (compact).

Love this extension on Chrome, really pleased it's available for Firefox. Really miss being able to delete messages from the pop up notification and it's a little slow to respond but I wouldn't use any other mail checker.

Voice reading is not supported on Firefox? I don`t see any option about voice language.. Loved it in Chrome.

If I want to copy something from an email in the popup and press ctrl+c it opens a new window with an empty mail - how do I deactivate that?

Almost as good as the Chrome version, though there are some things that are a little broken.

- "Hamburger" menu doesn't do anything (but I prefer it closed anyway).
- Feels a lot more sluggish than in Chrome (opening the menu, the settings page, etc)
- Rich notifications aren't really that rich without buttons, but I think that's Firefox's fault for not providing the ability.

Of those, the lack of good notifications is the real bummer. Hopefully that improves in time.

Great support with a lot of customization. It also works perfectly on Firefox 57.
But it has a lacking. It does not provide email notification icon on taskbar.
It would be great if this addon shows a blinking icon on taskbar when there are unread emails.
And this blinking should be continued until the user reads the emails.

С горем пополам заработал. В отличие от прочих.

no longer working with nightly 58 check the issue please

excelente extencion para gmail, inbox. solo necesita añadir compatibilidad con outlook, hotmail.