Used to be amazing and technically it still is. But there's a lot of errors lately, making this extension rather useless.
It often displays this error code:

getBGObjects@moz-extension://03031ac1-379c-4acb-aa46-59e3a7d42487/js/popup.js:436:2

Hope it'll be fixes soon, used to love Checker Plus.

Disappointing...had to remove.

Just what I was looking for. I have only one quibble, so far. I wanted to activate the voice input, I know it says Beta, but I thought, give it a try. The thing is, in the options area/Voice Input, I can't get it to activate. The check box won't accept an entry. I checked my Win 10 settings for the mic, and everything was fine. So I'm puzzled as to why it doesn't work. Anyway, I like this add-on, especially since I have a couple of accounts for different people etc, and it works very well.

Tam istediğim gibi. Teşekürler.

Please add possibility to delete emails from notifications like in chrome version

Simply brilliant for quickly reviewing your email. Super fast. Love it!

Excelente! me ahorra tiempo.

Great addon! thank