Mozilla Thunderbird makes e-mailing safer, faster, and easier with features such as intelligent spam filters, a built-in RSS reader, and quick search. Thunderbird was designed to prevent viruses and to stop junk mail.
Thunderbird includes tabbed e-mail, new search tools and indexing, smart folders, support for Firefox, a simplified setup wizard and robust junk protections that include phishing and spam filters.
Key Features Include:
- Tabbed email.
- An Archive feature similar to the one found in GMail.
- Lightning fast search.
- Smart folders.
Thunderbird has junk mail tools that have been updated to stay ahead of spam and features anti-phishing protection.
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.
According to 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
Double-clicking on a word in the Write window sometimes launches the Advanced Property Editor or Link Properties dialog.
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).