Genuinely this is a mandatory addon for me. I use it so often I actually paid for a free extension, dude earned it.

By far the best Extension available for using Gmail! It works so seamlessly with your browser and auto updates and gives notification for new emails. It is highly customizable and works better than i could have ever expected! It makes checking your Gmail such an easy task, and even easier if you have multiple Gmail accounts. I highly recommend this Extension to any Gmail user!

10/10

:D

...

Works perfectly, it's really helpful having multiple accounts and being able to mark read/unread/delete is convenient