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.

This is the perfect extension if you migrated from Google Chrome

Just migrated from Chrome to Firefox but I think I'll switch back to Chrome because this extension is sluggish on Firefox. Also, when I preview the mails, the background will turn black when I scroll.

Amazing extension! Fluid design, solid performance! Developer deserves full support!! Great work!

Thank yoy, it's greatest checker.

До обновления было ЛУЧШЕЕ дополнение! После обновления - стало хуже некуда!
В течение получаса ЗАБЫВАЕТ все ящики и пароли к ним! Надо каждый раз вводить всё заново! Отстой!
Автор, Верните предыдущую версию!

Worked at first, but now it never remembers multiple accounts, only recognises two of my three accounts, and opens one of my accounts as another account. Tried all the fixes suggested in troubleshooting and none work, problem is persistent. Very frustrating.

Es imprescindible para mí.

i have this for chrome but is there a version of this for yahoo once 57 is out

Just switched from Chrome and, after changing the button to open gmail in a new tab via the options, this works the same way as the extension I was used to using before.

no longer working with nightly 58 check the issue please

thank, works great

The best Gmail Notifier. Period. Thank you for that.

Works great.

First i'd like to say its a great extension. And i know it is not targeted for FF57+ however it does install on FF57b2 however it doesnt work. First it doesnt check for new mails (it says "cant access dead object") and then in th eoptions i cant control watched labels since when i try to unselect inbox it says "observer is null" :)

P.S. on FF55 situation is the same. :(

Ho provato quasi tutti i notifier di email presenti nella sezione Add-On di Firefox e Chrome, ma questo è decisamente il migliore.
Lettura, scrittura ed eliminazione delle email rapida, supporta più di un account contemporaneamente e non si blocca. Consigliato!

C'est un excellent addons. Les lenteurs que j'avais pu constater il y a quelques jours ne sont dues qu'à Gmail qui ralentit ou bloque Firefox pour nous obliger à utiliser Chrome.
Au contraire, en consultant ses mails à l'aide de Checker plus, ça reste relativement fluide, et en tous cas, ça ne bloque pas.
Cet addon serait bienvenu sur Palemoon et sur Brave