How to check Gmail without logging in
Each time your Gmail has new messages, there will be a notification right in the browser you are using. Too cool right?
If you regularly check your Gmail messages for hours on a daily basis, use the add-on below. This will make it easier for you to check for new Gmail messages. Here is the best way to check the new gmail messages.
With Google Chrome Browser
Use the Google Message Checker add-on. You install here.
With Firefox browser
Use the Gmail Notifier Plus add-on. Download here.
Click the Add to Firefox then a confirmation window appears, click Install to start the installation.
After installation you will see the Gmail Notifier Plus icon in the top right corner of Firefox browser, you will receive a new message here.