Betterbird v153.5.0esr-bb11 - Free Download



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 Home » OlderGeeks.com Freeware Downloads » Email Programs, Utilities and News Readers » Betterbird v153.5.0esr-bb11   
File - Download Betterbird v153.5.0esr-bb11
Description

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Betterbird v153.5.0esr-bb11

👉 Fine-tuned Thunderbird-based email client with exclusive features, fixes, and productivity improvements.

Betterbird is a soft fork of Mozilla Thunderbird that adds exclusive features, bug fixes, and usability improvements while maintaining compatibility with Thunderbird. It can be installed alongside Thunderbird and can use the same profile, making it easy to switch between the two. Betterbird improves everyday email management with features including multi-line message view, full account colors, advanced searching, regular expression searches, searching encrypted messages, improved system tray integration, attachment handling, calendar and feed improvements, and numerous fixes not yet available in Thunderbird.




Features:
• Fine-tuned Mozilla Thunderbird-based email client
• Multi-line message view similar to Outlook, Lotus Notes and Postbox
• Full account colors support
• Vertical tabs
• Attachments displayed on top
• Complex search terms
• Regular expression searching
• Search within encrypted messages
• Improved Windows and Linux system tray integration
• Minimize to tray and close to tray support
• Can be installed alongside Thunderbird
• Can use the same profile as Thunderbird
• Advanced message and folder management
• Improved calendar functionality
• Improved feed handling
• Enhanced compose and attachment handling
• Windows portable version available
• Native builds for Windows, Linux and macOS
• Intel and Apple Silicon macOS builds available
• Language packs work across all supported platforms

Supported operating systems:
• Windows 10 64-bit, Windows 11 64-bit
• Linux Mint 22, Ubuntu 22, Debian 12 Bookworm, compatible 64-bit Linux distributions with GLIBC 2.35 or newer
• Linux ARM64 distributions with GLIBC 2.36 or newer
• macOS Catalina or higher on Intel x86-64 processors
• macOS Catalina or higher on Apple Silicon ARM64 processors, including macOS Ventura, macOS Sonoma 14, macOS Sequoia 15 and later

Supported languages:
• English (US), English (GB), German, Dutch, French, Italian, Japanese, Spanish (Spain), Portuguese (Brazil), Portuguese (Portugal), Russian, Chinese (Simplified), Czech, Polish, Swedish, Ukrainian

Changes:
v153.5.0esr-bb11 10-13-26
Based on Thunderbird 153.5.0esr
Fixed in this version:
FIXED - Regression: Activity Indicator in Unified Toolbar and progress bar in status bar for downloading messages, compacting, etc. not working
FIXED - Linux: Wayland content offset ("phantom shadow") after window is restored after being "minimised to tray" - GitHub #399
FIXED - "Phantom messages" (Unread, dated 1967/1970, empty details) when archiving in threaded unified folder
FIXED - Compose auto-save moved caret from subject to body or vice versa under certain circumstances
EXPERIMENTAL FIX - Windows: Sporadic empty new mail alert on Windows when Betterbird-native XUL alert is used - GitHub #599
EXPERIMENTAL FIX - Linux Flatpak: Interoperability with KeepassXC - GitHub Flatpak #340














👉 This download is for the Windows Installer version (very bottom of page).
All other download assets are below:


Other Windows:
BetterbirdPortable-153.5.0esr-bb11.en-US.win64.zip

MacOS:
betterbird-153.5.0esr-bb11.en-US.mac.dmg
betterbird-153.5.0esr-bb11.en-US.mac-arm64.dmg
Mac builds are not notarized. Follow these instructions to run them.
Altenatively, run spctl --add /Applications/Betterbird.app in a terminal (Source).
(*): The ARM64 build for silicon Macs is experimental. If you receive an error "Betterbird" is damaged and can't be opened, run xattr -cr /Applications/Betterbird.app

Linux:
betterbird-153.5.0esr-bb11.en-US.linux-x86_64.tar.xz


Click here to visit the author's website.
Continue below for the main download link.


Downloads Views Developer Last Update Version Size Type Rank
3,992 14,586 betterbird.eu & Jorg Knobloch Oct 16, 2026 - 12:52 153.5.0esr-bb11 82.13MB EXE 5/5, out of 81 Votes.
File Tags
OpenPGP  RSS  contacts  ESR  client  portable  calendar  SMTP  IMAP  POP3  mail  email  Thunderbird  Betterbird  
      
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