Thunderbird is an email client from Mozilla, the organisation better known for the Firefox web browser which has a great deal to offer. In addition to handling multiple email accounts, the program can also be used to subscribe to RSS feeds and access online newsgroups and a new tabbed interface makes it easy to jump between individual emails or different aspects of the program.

There are new tools available to make it easier to manage a burgeoning inbox Email archival makes it possible to remove messages from your main inbox while retaining them for future reference, and the advanced search facility takes the hard works out of tracking down messages using a keyword filtering and timeline system.

As is the case with Firefox, Thunderbird supports addons can be used to customise and extend the features of the program. Getting started with the email client has been greatly simplified thanks to automatic account setting detection and nice touches such as the appearance of a warning if an email is written which includes the word 'attached' but no attachment is added make Thunderbird a joy to use.

With advanced security, phishing protection and automatic updating, coupled with countless other features which are simply not found in other email clients, Thunderbird is the ideal program to handle your email correspondence and much more.

What's new in 60 (see release notes for more):

- When writing a message, a delete button now allows the removal of a recipient. This delete button is displayed when hovering the To/Cc/Bcc selector.
- Many improvements to attachments handling during compose
- "Edit Template" command. This also solves various problems when saving as template (duplicates created, message ID lost).
- "New Message from Template" command
- Allow changing the Spellcheck Language from status bar
- Light and Dark theme
- WebExtension themes are now enabled in Thunderbird
- A default startup directory in the address book window can now be configured
- Individual feed update interval
- An option under "Tools > Options, Advanced, General" now allows to select whether date/time display will follow the application locale (adjusted by operating system's format settings for that locale) or the locale selected in the operating system's regional settings. In other words, an US English Thunderbird can use, for example, German formats.
- OAuth2 authentication for Yahoo and AOL
- FIDO U2F support
- Thunderbird now allows the conversion of folders from mbox to maildir format and vice versa.
- Calendar: Allow copying, cutting or deleting of a selected occurrence or the entire series for recurring events
- Calendar: Provide an option to display locations for events in calendar day and week views
- Calendar: Provide the ability for sending/not sending meeting notifications directly instead of showing a popup
- Calendar: Option to select the target calendar when pasting an event or task
- Calendar: Allow email scheduling for CalDAV servers supporting server-side scheduling
- Thunderbird Chat now contains multiple built-in message themes

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Evolution rather than revolution is the buzzword for Thunderbird, but all the improvements are welcome, nonetheless.