Mail Checker for Proton Mail by beo

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Mail Checker for Proton Mail version history - 15 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.8.2
Released Jun 11, 2026 - 1.11 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
Download Firefox and get the extension
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Older versions
Version 1.8.0
Released Jun 11, 2026 - 1.09 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.7.0
Released Jun 10, 2026 - 1.06 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.14
Released Jun 7, 2026 - 1.04 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.13
Released Jun 6, 2026 - 1.03 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.12
Released Jun 5, 2026 - 1.03 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.11
Released Jun 5, 2026 - 1.03 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.10
Released Jun 5, 2026 - 1.02 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.8
Released May 30, 2026 - 1.15 MB
Works with firefox 142.0 and later
• Fixed the account colour picker being cut off at the right edge of the popup.
• Faster handling of large attachments.
• Internal code cleanup, de-duplication, and more automated tests. No changes
to features, permissions, or how your data is handled.
Source code released under All Rights Reserved
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Version 1.6.7
Released May 30, 2026 - 1.15 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.6
Released May 29, 2026 - 1.14 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.5
Released May 28, 2026 - 1.14 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.4
Released May 27, 2026 - 1.13 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.6.3
Released May 13, 2026 - 1.13 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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Version 1.5.7
Released May 4, 2026 - 2.47 MB
Works with firefox 142.0 and later
Source code released under All Rights Reserved
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