Exactly what I need! Simple and useful, thanks man

Atendeu minhas necessidades , curti .

This is not working properly anymore. It rarely works when I click on the delete button.

After clicking delete, the message is not deleted. Reading and the spam button also do not work in the pop-up window.

Great

I wanted to have sound notifications for specific labels but I don't know how to add labels with special characters like spaces.
I think there should be some kind of dropdown with labels existing on my gmail.

Great Gmail notification on Firefox browser. Accurate, Handy, Configurable, Saves a lot of click work, convenient preview allowing deletion and marking without entering Gmail website, icon notification with numbered notification on toolbars