Thunderbird: Free Your Inbox

All Versions of Thunderbird: Free Your Inbox

• 
  20.0(26)This is the latest versionLatest

  XAPK

  Jun 25, 202610.3 MBAndroid 6.0+What's New
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  What's new in the version 20.0

  Updated on Jun 25, 2026

  Thunderbird version 20.0
  
  New:
  - Enable easily discoverable way to configure and use Thundermail
  
  Changed:
  - Only show message notification config actions above the cutoff
  
  Fixed:
  - Account drawer stayed open after account switch despite auto-select Inbox setting
  - Imported settings could incorrectly show 'XX' avatar monogram
  - Printed emails omitted message headers and used minimal margins
  - Compose button did not work in tablet split-screen message view
  

• 
  19.2(25)

  XAPK

  Jun 4, 202610.3 MBAndroid 6.0+What's New
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  What's new in the version 19.2

  Updated on Jun 4, 2026

  Thunderbird version 19.2
  
  Fixed:
  - K-9 Mail crashed when scanning Thundermail QR code
  

• 
  19.1(24)

  XAPK

  Jun 4, 202610.3 MBAndroid 6.0+What's New
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  What's new in the version 19.1

  Updated on Jun 4, 2026

  Thunderbird version 19.1
  
  New:
  - Enable easily discoverable way to configure and use Thundermail
  

• 
  19.0(23)

  XAPK

  May 29, 202610.3 MBAndroid 6.0+What's New
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  What's new in the version 19.0

  Updated on May 29, 2026

  Thunderbird version 19.0
  
  New:
  - Message notification actions can be configured
  - Message font size scales with device preferences
  - Integrate an easily discoverable way to configure and use Thundermail
  
  Fixed:
  - Thunderbird crashed on Android 8 when fetching images
  - Accidental swipe in message viewer marked unread email as read
  

• 
  18.0(22)

  XAPK

  Apr 16, 202615.6 MBWhat's New
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  What's new in the version 18.0

  Updated on Apr 16, 2026

  Thunderbird version 18.0
  
  New:
  - PNG avatars
  - Setting to display ISO date/time in message list
  - Fixed-width font for composing
  
  Changed:
  - Attachment summary moved to header
  
  Fixed:
  - "Delete (from notification)" setting did not retain state
  - Find folder search hint text was cut off
  - User not notified if offline when sending message
  - CC/BCC fields were not expanded by default for Reply All
  - Crash occurred when retrieving images
  - Deleted messages could remain visible in message list
  

• 
  17.0(21)

  APKXAPK

  Mar 19, 202613.8 MBAndroid 6.0+What's New
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  What's new in the version 17.0

  Updated on Mar 19, 2026

  Thunderbird version 17.0
  
  New:
  - Account avatar customization
  - Foldable device support
  - Email messages can be printed
  - Unified folder account indicator
  - Display account avatar in message notifications
  
  Fixed:
  - Tap behavior was unreliable in recipient fields
  - Device orientiation change duplicated recipient field text
  

• 
  16.1(20)

  XAPK

  Feb 12, 202613.8 MBAndroid 5.0+What's New
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  What's new in the version 16.1

  Updated on Feb 12, 2026

  Thunderbird version 16.1
  
  Fixed:
  - Messages containing complex CSS could be unreadable
  - Deleted/read messages in unified inbox may not update until refresh
  

• 
  16.0(19)

  APK

  Feb 4, 202613.0 MBAndroid 5.0+
  Download
  What's new in the version 16.0

  Updated on Feb 4, 2026

• 
  15.0(18)

  XAPK

  Jan 12, 202613.6 MBAndroid 5.0+What's New
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  What's new in the version 15.0

  Updated on Jan 12, 2026

  Thunderbird for Android version 15.0, based on K-9 Mail. Changes include:
  - Default sync interval changed to 15 minutes
  - Use application icon in push notification messages
  - 'Colorize contact pictures' default changed unexpectedly from true to false
  - Displaying IMAP password in did not prompt for authentication
  - Sync debug logger did not write any logs

• 
  14.0(17)

  APKXAPK

  Nov 19, 202512.3 MBAndroid 5.0+What's New
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  What's new in the version 14.0

  Updated on Nov 19, 2025

  Thunderbird for Android version 14.0, based on K-9 Mail. Changes include:
  - 'Auto-fit messages' setting did not persist
  - Edge-to-edge move/copy regressed with 3-button nav
  - Swiping message left/right could abort prematurely
  - Outlook SMTP failed authentication for some accounts
  - Gmail folder prefixes appeared after refreshing folder list
  - Quiet time preferences were ignored
  - Thunderbird could crash after deleting an account