Affected servers must be updated to use a different certificate. Consequently, any SSL/TLS connections to servers using an affected certificate will fail. Thunderbird 68 distrusts most SSL/TLS certificates issued by the Certificate Authorities (CA) with the brand names Symantec, GeoTrust, RapidSSL and Thawte. Maildir now uses the message ID as file name and 'eml' as file extensionĪuto-compact threshold increased from 20 MB to 200 MBĬalendar: UI improvements for event dialogĬalendar: Thunderbird's calendar add-on Lightning now uses the same version numbering scheme Reply to self will now search all identities (default of preference mailnews.reply_to_self_check_all_ident changed to true) Improved phishing attempt detection for messages with certain forms Toggle preference mail.inline_attachments.text to display them inline again. Textual attachments (plain text, HTML, XML, etc.) are no longer displayed inline. UI improvements for external and detached attachments, now showing as links with new menu option 'Open Containing Folder' New option in 'Tools > Options, Composition'. Text and background colors in the Write window and custom colors for tags are no longer restricted to a fixed 10x7 matrix of HTML colorsĬomposition text and background colors no longer sent by default. Dropbox and Box.com using the new WebExtensions FileLink API are available as add-ons, amongst others. Improvements when entering, selecting and removing recipients in the Write windowįileLink: WeTransfer is already included. Various theme improvements including a dark message list/thread pane The stand-alone options window has been removed, all options are now shown in a tab ** Theme support: Only WebExtension themes are supported now.** Both and now provide WebExtension themes. ** Dictionary support: Only WebExtension dictionaries are supported now.** Both and now provide WebExtension dictionaries. All known time zone changes from 2018 to 2022 are included.Ĭhat: In each conversation an individual spellcheck language can be selected now ChangesĪdd-on support: Add-ons are only supported if add-on authors have adapted them See this support article for details.Ĭalendar: Time zone data can now include past and future changes. Workaround: start with option -allow-downgrade. To protect your profile data against a downgrade, Thunderbird 68 may display a message 'You have launched an older version of Thunderbird' and will not allow opening a specific profile. On Windows a 64bit installer and MSI package are now available, see the Thunderbird for Organisations page for detailsĪdded a policy engine that allows customized Thunderbird deployments in enterprise environments, using Windows Group Policy or a cross-platform JSON fileįull Unicode support for MAPI interfaces: New support for MAPISendMailW Preference needs to be set (and possily also needs to be set to false) Language packs can now be selected in the Advanced Options. Window: Windows 7, Windows Server 2008 R2 or laterįile link attachments can now be linked to again instead of uploading them again.If you have installed Lightning, Thunderbird's calendar add-on, it will automaticallyīe updated to match the new version of Thunderbird.** Refer to this

A future version 68.1 will provide updates from earlier versions. and not as upgrade from Thunderbird version 60 ** Thunderbird version 68.0 is only offered as direct download from As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. Check out the notes below for this version of Thunderbird.

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