It seems a good extension.
I would like to be able to suppress all the providers I don't need, leaving visible only Live.com and Yahoo.
Thanks.

From the name , this plug-in and the old version of the Firefox browser is the same. Why not support the 163 mail , 126 mail like old version. 这个插件从名字上看和老版本火狐上自带的邮箱提醒是一样的，为什么不像老版本一样支持163邮箱？对于老用户非常不友好。

Very good but request you to change the color of the icon as it i not recognizable in dark theme.