Thunderbird 78.10.1 freeware

... the same people who brought you the Firefox browser. Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts. ...

Author Mozilla Foundation
Released 2021-05-05
Filesize 67.00 MB
Downloads 5648
OS Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Linux, Mac OS X
Installation Instal And Uninstall
Keywords free email client, mail client, send mail, Mozilla, email, mail
Users' rating
(151 rating)
Thunderbird - web browser Freeware Download Notice

Thunderbird Free Download - we do not host any Thunderbird torrent files or links of Thunderbird on,, etc. All Thunderbird download links are direct Thunderbird download from publisher site or their selected mirrors.

Thunderbird freeware - The Latest User Reviews
Thunderbird freeware - The Latest Versions History
78.10.1 May 5, 2021 New Release Changes:
Removed the fix for bug 1689804 introduced in Thunderbird 78.9.0, restoring the previous behavior
Various security fixes:
CVE-2021-29951: Thunderbird Maintenance Service could have been started or stopped by domain users
78.10.0 Apr 20, 2021 New Release Fixes:
Usability & theme improvements on Windows
Various security fixes:
CVE-2021-23994: Out of bound write due to lazy initialization
CVE-2021-23995: Use-after-free in Responsive Design Mode
CVE-2021-23998: Secure Lock icon could have been spoofed
CVE-2021-23961: More internal network hosts could have been probed by a malicious webpage
CVE-2021-23999: Blob URLs may have been granted additional privileges
CVE-2021-24002: Arbitrary FTP command execution on FTP servers using an encoded URL
CVE-2021-29945: Incorrect size computation in WebAssembly JIT could lead to null-reads
CVE-2021-29946: Port blocking could be bypassed
CVE-2021-29948: Race condition when reading from disk while verifying signatures
78.9.0 Mar 25, 2021 New Release Fixes:
New mail notification displayed old messages that were unread
Spaces following soft line breaks in messages using quoted-printable and format=flowed were incorrectly encoded; existing messages which were previously incorrectly encoded may now display with some words not separated by a space
Some fields were unreadable in the Dark theme in the General preferences panel
Sending a message containing an anchor tag with an invalid data URI failed
When switching tabs, input focus was not moved to the new tab
Address Book: Syncing a read-only Google address book via CardDAV failed
Address Book: Importing VCards with non-ascii characters would fail
Address Book: Some values may not have been parsed when syncing from Google address books.
Add-ons Manager did not show if an addon used experiment APIs
Calendar: Removing a recurring task was not possible
Various security fixes

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