A free email application from Mozilla that's easy to set up and customize

Thunderbird (32-bit)

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Thunderbird 1.5.0.2

  -  6.03 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Thunderbird 1.5.0.2.


For those interested in downloading the most recent release of Thunderbird (32-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download Thunderbird 1.5.0.2

  • Thunderbird 1.5.0.2 Screenshots

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    Thunderbird 1.5.0.2 Screenshot 1
  • Thunderbird 1.5.0.2 Screenshot 2

What's new in this version:

Security issues: (1)
* Fixed: 328917 - Mail Multiple Information Disclosure Vulnerabilities

Crashes: (8)
* Fixed: 306067 - null pointer dereference crash
* Fixed: 317420 - Firefox 1.5RC3 crashes when trying to print a page
* Fixed: 319210 - crash [@ plc4.dll + (00001ae2)] on mail send (using SSL connection to SMTP)
* Fixed: 321495 - Thunderbird 1.5rc1 and 1.5rc2 hangs with 945 messages in a POP account
* Fixed: 323131 - crash after saving all attachments [@ nsMessenger::SaveAllAttachments]
* Fixed: 328187 - crash at IMAP login with GSSAPI authentication using SSPI library
* Fixed: 322273 - Crash at [@ nsMsgQuickSearchDBView::ListIdsInThread]
* Fixed: 322283 - Crash after filter operation with a missing destination folder

Functionality: (9)
* Fixed: 180849 - Mail loss in import of NC4 mail when 0x5C(\) is used as 2nd byte of muti-byte character in folder name.
* Fixed: 307052 - Spellchecker doesn't display suggestion list for misspelled words if Russian Spell dictionary is installed
* Fixed: 307527 - Connection timeout with IMAP on dual core systems
* Fixed: 315625 - When forwarding a message inline, Thunderbird strips inline-images
* Fixed: 316812 - When address book name is Japanese character, address book is lost when new address book is created
* Fixed: 317009 - Thunderbird incorrectly decodes =00 in quoted-printable attachments as 0x20, not NULL
* Fixed: 323318 - When the attachment file name is separated, should append semi-colon(';')
* Fixed: 323608 - ldap schema's use of displayName has changed since Thunderbird 1.0x
* Fixed: 326280 - Suppression of append-domain autocompletion not working

RSS: (4)
* Fixed: 312008 - RSS feeds stop loading after connection errors
* Fixed: 315600 - Hangs while validating feed (rdf)
* Fixed: 320818 - broken parsing on CDATA sections
* Fixed: 320967 - 'content:encoded' field ignored in RSS2 feed parsing

UI improvements: (6)
* Fixed: 183394 - sometimes when you delete a message, the focus gets lost instead of going to the next message
* Fixed: 184811 - addressingwidget appears as sunken, not as button
* Fixed: 299343 - Can't copy and paste into the beginning of a line
* Fixed: 315057 - Display - Fonts tab: The pull-down menu of Character Encodings doesn't work.
* Fixed: 320185 - It's impossible to delete or detach attachment via File Menu
* Fixed: 326846 - read mail not marked as read

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