Check your POP3, IMAP and SMTP mailboxes in Firefox

Simple Mail is a Firefox extension that can turn your favorite web browser into a basic, yet fully functional email client.

Once installed, you can configure Simple Mail with your email account details and manage your mailbox from just another tab in Firefox.

The extension works with POP3, SMTP and IMAP email accounts – no webmail support here, but hey, simply open another tab and browse to your webmail page.

Also, you can set up as many simultaneous accounts as you want.

Simply Mail behaves just like any regular email client: you’ll be able to check your messages, reply to them, see any attached files and of course send new messages from a full featured rich text editor.

The program also includes some nice options such as an address book or the possibility to download just message headers. Just bear in mind that this is meant to be a simple, lightweight client so there won’t be extra features like signatures or spam filters.

With Simple Mail you can get notified, read and write email messages right in Firefox. Just configure one or more accounts in Preferences, set account refresh time and get notified of new mail.

When new mail arrives, Simple Mail shows new messages count in status bar. You can click Simple Mail icon to open received messages in a separate browser tab.