Betterbird: Downloads

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Current version: Betterbird 140.7.1esr-bb18 (25 January 2026)

Windows binaries have been re-released on 12 Feb 2026 signed with a certificate from the reputable source Certum.

  Windows Installer Windows Portable Linux Archive Mac Disk Image
Language Pack
English
(en-US)
Windows Installer Windows Portable Linux Archive Mac Disk Image (x86)(*)
Mac Disk Image (arm64)(*)
English
(en-GB)
- - - Language Pack
German Windows Installer Windows Portable Linux Archive Language Pack
Dutch Windows Installer Please request! Linux Archive Language Pack
French Windows Installer Windows Portable Linux Archive Language Pack
Italian Windows Installer Please request! Linux Archive Language Pack
Japanese Windows Installer Please request! Linux Archive Language Pack
Spanish
(es-ES)
Windows Installer Windows Portable Linux Archive Language Pack
Portuguese
(pt-BR)
Windows Installer Please request! Linux Archive Language Pack
Russian Windows Installer Please request! Linux Archive Language Pack
Chinese
(simplified)
- - - Language Pack
Czech - - - Language Pack
Polish - - - Language Pack
Swedish - - - Language Pack
Ukrainian - - - Language Pack

Language packs work on all three platforms.
In your browser, language pack XPIs need to be downloaded with "Save Link As..." and installed manually. If this page was loaded in Betterbird via Search for more languages, you can install a language pack with a single click.

(*) Important Notes for Mac Users:
Mac builds are not notarised. Follow these instructions to run them.
Alternatively, for pre-Sequoia systems up to Sonoma 14, you can run:
spctl --add /Applications/Betterbird.app in a terminal (Source).
For any system, including Sequoia 15 and up, you can run:
xattr -r -d com.apple.quarantine /Applications/Betterbird.app.
Note that spctl --add is no longer available under Sequoia. It's possible that pre-Sequoia Silicon systems also need the xattr command. This will fix the following errors:
"Betterbird.app" is damaged and can't be opened. You should move it to the Trash.
"Betterbird.app" Not Opened - Apple could not verify "Betterbird.app" is free of malware that may harm your Mac or compromise your privacy.

If you wish to automate the download, you can use:
wget -N --trust-server-names "https://www.betterbird.eu/downloads/get.php?os=win&lang=en-US&version=release".
This script will get you the download location:
wget "https://www.betterbird.eu/downloads/getloc.php?os=win&lang=en-US&version=release" -O download.txt.
Check the links above to see which call arguments are supported.

All binaries are for x64 systems. Sha256 sums available here.

Previous version: Betterbird 128.14.0esr-bb32 (16 August 2025)
End-of-live on 14 September 2025

  Windows Installer Windows Portable Linux Archive Mac Disk Image
Language Pack
English
(en-US)
Windows Installer Windows Portable Linux Archive Mac Disk Image (x86)(*)
Mac Disk Image (arm64)(*)
English
(en-GB)
- - - Language Pack
German Windows Installer Windows Portable Linux Archive Language Pack
Dutch Windows Installer Please request! Linux Archive Language Pack
French Windows Installer Windows Portable Linux Archive Language Pack
Italian Windows Installer Please request! Linux Archive Language Pack
Japanese Windows Installer Please request! Linux Archive Language Pack
Spanish
(es-AR)
Windows Installer Windows Portable Linux Archive Language Pack
Portuguese
(pt-BR)
Windows Installer Please request! Linux Archive Language Pack
Russian Windows Installer Please request! Linux Archive Language Pack
Chinese
(simplified)
- - - Language Pack
Czech - - - Language Pack
Polish - - - Language Pack
Swedish - - - Language Pack
Turkish - - - Language Pack
Ukrainian - - - Language Pack

See notes under the 140 table.

All binaries are for x64 systems. Sha256 sums available here.

Downloads per file

Addons
9 files
Size: 1.24MB
Addons-fixed-for-BB
6 files
Size: 6.87MB
LanguagePacks
32 files
Size: 30.77MB
LinuxArchive
29 files
Size: 2.26GB
MacDiskImage
8 files
Size: 1.12GB
WindowsInstaller
39 files
Size: 3.18GB
WindowsPortable
13 files
Size: 1.45GB

Thank you for downloading!

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