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What's New in the Latest Version 13.0b3
Sep 26, 2025
Thunderbird for Android version 13.0b3, based on K-9 Mail. Changes include:
- Updating to 13.0b2 offline with IMAP prefix caused migration failure and data loss
- App crashed on startup when no folders were available after data loss
APK Info
- Package Namenet.thunderbird.android.beta
- File FormatXAPK
- Android OSAndroid 5.0+ (Lollipop, API 21)
- Architecturearm64-v8a
- LanguagesEnglish 45 more
- Content RatingEveryone
- Signaturea17411f1092ca647500a8b6f0297e205088f4015
- FeedbackFlag as inappropriate
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Other Versions
Thunderbird Beta for Testers 13.0b4
Download22.3 MBOct 4, 2025
Thunderbird Beta for Testers 13.0b3
Download22.4 MBSep 26, 2025
Thunderbird Beta for Testers 13.0b2
Download22.4 MBSep 19, 2025
Thunderbird Beta for Testers 13.0b1
Download12.5 MBSep 9, 2025
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