Mozilla Thunderbird, Portable Edition v115.11.0 Updated

Ennovy on 16 May 2024
  • 449MB (uncompressed)
  • Released on 15 May 2024
  • Suggested by Eu Gene Lim

Mozilla Thunderbird is a skinnable, feature-rich email, calendar, task and instant messaging client with support for plugins and many protocols. It comes with advanced search tools, message filtering, Bayesian spam detector, built-in spell checker, mailbox compression and many more. Program features can be extended with add-ons, including a specialized version of email encryption tool GPG.

Email protocols include SMTP, POP3, IMAP (including uploads, albeit a date issue), NNTP and RSS and chat support for IRC, Twitter, XMPP, Google Talk, and Matrix. Also supports OAuth for use with accounts that require it instead of a password.

Mozilla Thunderbird, Portable Edition is a special build licensed by Mozilla. Alternatively, X-Thunderbird is also available. For XP/Vista, version 52.9.1 is available here.

Runs on:Win7 / Win8 / Win10 / Win11
Writes settings to: Application folder
Stealth: ? Yes. Note that available add-ons may or may not break stealth status, writing to AppData\Roaming\Thunderbird
Unicode support: Yes
Path portability: Automatic relative path (eg. ..\..\personal\work.doc)
License: Launcher: GPL, Thunderbird: MPL
How to extract: Download the self-extracting EXE and extract to a folder of your choice. Launch ThunderbirdPortable.exe.
Similar/alternative apps: i.Scribe, Sylpheed
What's new? See:

53 comments on Mozilla Thunderbird, Portable Edition  The Portable Freeware Collection Latest Entries Feed

i_messed_up 2020-05-30 22:26

Also found this key in the registry: Computer\HKEY_CURRENT_USER\Software\Thunderbird\Crash Reporter


i_messed_up 2020-05-26 21:32

Another folder: /AppData/Local/Thunderbird/updates/31986B0A98BCC43C


i_messed_up 2020-05-22 15:13

I've noticed a folder in AppData/Roaming/Thunderbird/Crash Reports containing a file "InstallTime20191031083309" and an empty folder "events."


JohnTHaller 2020-04-01 15:22

Generally, releases updates to Thunderbird within about 24 hours for the 2 dozen packages supported. Thunderbird Portable 68.x was purposely delayed while we implemented a fix for extension portability and the 60.x branch was maintained. That way users didn't suddenly have all their extensions break. It's nearly complete but was delayed while I recovered from an illness. The other package you mentioned breaks extensions as it is moved and is using Mozilla's trademarks by repackaging Thunderbird in violation of their trademark guidelines.


freakazoid 2020-03-31 15:29

@i_messed_up - Stormhen Portable is essentially the same as Thunderbird Portable, but updated faster than the one at and might have slightly different changes in their portable wrapper. The difference is in the name, since cannot use Mozilla's branding, whereas can.


i_messed_up 2020-03-31 03:16

How does this compare to [Stormhen]( That one has a much more recent version, while this one hasn't been updated since November 2019.


Emka 2019-07-14 06:07

Is it really stealth? I have only recently switched to Thunderbird Portable and I always find it leaving folders in AppData


webfork 2018-08-16 13:49

CornHolio: updated


CornHolio the Gringo 2018-08-13 18:23

You need to update the GIF.
Its out of date...


webfork 2018-08-13 14:17

AndTheWolf: confirmed.


Older comments are hidden - Click to display all comments ▾

Post your comment