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MailCheck for Firefox—Convenient Email Notification

Get email in your Firefox browser with

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By downloading the application, you agree to the End User License Agreement and our Privacy Policy.

The solution for more efficient email—MailCheck for Firefox

Email is an unavoidable daily reality that can often be quite time-consuming. However, it’s one of the most essential methods of communication, and being able to stay on top of your inbox is therefore extremely important. The MailCheck feature from offers a convenient solution to meet this need.

Stay informed and in touch—MailCheck Firefox from

The MailCheck for Firefox add-on makes staying on top of your inbox easier, as it gives you an overview of all of your email at once—directly in your Mozilla Firefox browser. After installing the MailCheck Firefox add-on, you will then see an envelope icon displaying email in your Firefox toolbar. This icon notifies you of all new incoming mail. Also incredibly prompt and up-to-date, the MailCheck feature scans all mailboxes at regular intervals. Having access to your mailbox directly from your browser helps you to avoid wasting time; you can always see at-a-glance if new email has come in, instead of having to sign in to an account just to check if you have received new mail. With your email never out of sight, you can easily stay informed and keep in touch.

Simplified sign-in with the easy one-click login

With the MailCheck for Firefox add-on, you only need to log in once with your credentials in order to gain quick and simplified access. From then on, you merely click on the envelope icon in your Mozilla Firefox browser for instant access to all of your emails. No more searching for your email provider in a search engine then directing toward the sign-in page, and finally entering your login details—skip all of this with easy one-click login with MailCheck Firefox from

Convenient and customisable

Although there are some default settings activated in the MailCheck feature to notify you of incoming mail, the MailCheck for Firefox add-on is completely customisable to your taste. Aside from enabling or disabling the pop-up message or sound notifications for new mail, you can also show and hide buttons to visually tailor it to your preferences. Furthermore, you can add multiple email accounts to the MailCheck feature in order to keep things organised and manageable, and the number of emails in each mailbox will be displayed within a list in your Mozilla Firefox browser. Email accounts can be added and deleted at will. A complete overview of your mailbox at a glance and easy access to your account with one-click, as well as the ability to personalise it as you like—that’s the experience with our MailCheck Firefox add-on.

Aside from being an excellent Firefox browser add-on, the MailCheck feature is also available for Chrome, Internet Explorer and Safari.

The benefits of MailCheck for Firefox at a glance

  • You only have to manually log in once for instant future access.
  • Afterwards, you have easy one-click login to your mailbox.
  • MailCheck for Firefox can be used with multiple email addresses.
  • The MailCheck feature displays the number of unread messages in each mail account directly in your Firefox browser.
  • Fully customisable Firefox browser add-on.
  • Pop-up and/or sound email notifications for ‘new mail’ are included, but can also be switched off.
Free Download

By downloading the application, you agree to the End User License Agreement and our Privacy Policy.