De Mozilla Foundation heeft versie 60.3.1 van Thunderbird uitgebracht. Mozilla Thunderbird is een opensourceclient voor e-mail en nieuwsgroepen, met features als ondersteuning voor verschillende mail- en newsaccounts, een spamfilter, spellingscontrole en een aanpasbaar uiterlijk. De bijbehorende releasenotes zien er als volgt uit:
Version 60.3.1 fixed issues
Known Issues
- Double-clicking on a word in the Write window sometimes launched the Advanced Property Editor or Link Properties dialog
- Cookie removal (not working since Thunderbird version 52)
- "Download rest of message" not working if global inbox was used
- Encoding problems for users (especially in Poland) when a file was sent via a folder using "Sent to > Mail recipient" due to a problem in the Thunderbird MAPI interface
- According to RFC 4616 and RFC 5721, passwords containing non-ASCII characters are encoded using UTF-8 which can lead to problems with non-compliant providers, for example office365.com. The SMTP LOGIN and POP3 USER/PASS authentication methods are now using a Latin-1 encoding again to work around this issue.
- Shutdown crash/hang after entering an empty IMAP password
Version 60.3.0 fixed issues
- Under some circumstances Thunderbird on Mac will send attachments using the so-called AppleDouble format which can lead to problems with mail servers and recipients
- CalDav access to some servers not working. Workaround: Set preference network.cookie.same-site.enabled to false.
- Chat: Twitter not working due to API changes at Twitter.com (solution forthcoming)
- Various Theme fixes where incorrect colors, backgrounds, etc. were displayed
- Add-on Options menu not working on Mac
- Shift+PageUp/PageDown in Write window
- Saving content of Write windows didn't overwrite existing file
- Issues related to "Edit Template" command
- Gloda attachment filtering
- Mailing list address auto-complete enter/return handling
- Thunderbird hung if HTML signature references non-existent image
- Filters not working for headers that appear more than once
- Various security fixes