Private Grammar Checker - Harper by Elijah Potter

4.6 Stars out of 5

Private Grammar Checker - Harper version history - 25 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 1.5.1
Released Jan 22, 2026 - 14.28 MB
Works with firefox 135.0 and later
See the main release notes here: https://github.com/Automattic/harper/releases/tag/v1.5.1
Source code released under Apache License 2.0
Download Firefox and get the extension
Download file
Older versions
Version 1.4.1
Released Jan 8, 2026 - 6.29 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.4.1
Source code released under Apache License 2.0
Download file
Version 1.3.0
Released Dec 22, 2025 - 6.26 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.3.0
Source code released under Apache License 2.0
Download file
Version 1.2.0
Released Dec 11, 2025 - 6.24 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.2.0
Source code released under Apache License 2.0
Download file
Version 1.1.0
Released Dec 3, 2025 - 6.24 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.1.0
Source code released under Apache License 2.0
Download file
Version 1.0.0
Released Nov 28, 2025 - 6.24 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.0.0
Source code released under Apache License 2.0
Download file
Version 0.73.0
Released Nov 24, 2025 - 6.19 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.73.0
Source code released under Apache License 2.0
Download file
Version 0.72.0
Released Nov 14, 2025 - 6.18 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.72.0
Source code released under Apache License 2.0
Download file
Version 0.71.0
Released Nov 6, 2025 - 6.12 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.71.0
Source code released under Apache License 2.0
Download file
Version 0.70.0
Released Oct 27, 2025 - 5.74 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.70.0
Source code released under Apache License 2.0
Download file
Version 0.69.0
Released Oct 22, 2025 - 5.74 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.69.0
Source code released under Apache License 2.0
Download file
Version 0.68.0
Released Oct 15, 2025 - 5.72 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.68.0
Source code released under Apache License 2.0
Download file
Version 0.67.0
Released Oct 6, 2025 - 5.7 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.67.0
Source code released under Apache License 2.0
Download file
Version 0.66.0
Released Oct 1, 2025 - 5.75 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.66.0
Source code released under Apache License 2.0
Download file
Version 0.65.0
Released Sep 22, 2025 - 5.72 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.65.0
Source code released under Apache License 2.0
Download file
Version 0.64.0
Released Sep 15, 2025 - 5.69 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.64.0
Source code released under Apache License 2.0
Download file
Version 0.63.0
Released Sep 12, 2025 - 5.68 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.63.0
Source code released under Apache License 2.0
Download file
Version 0.62.0
Released Sep 8, 2025 - 5.66 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.62.0
Source code released under Apache License 2.0
Download file
Version 0.61.0
Released Sep 2, 2025 - 5.62 MB
Works with firefox 135.0 and later
See the main release notes here: https://github.com/Automattic/harper/releases/tag/v0.61.0
Source code released under Apache License 2.0
Download file
Version 0.60.0
Released Aug 28, 2025 - 5.62 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.60.0
Source code released under Apache License 2.0
Download file
Version 0.59.0
Released Aug 21, 2025 - 5.61 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.59.0
Source code released under Apache License 2.0
Download file
Version 0.58.0
Released Aug 18, 2025 - 5.61 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.58.0
Source code released under Apache License 2.0
Download file
Version 0.57.0
Released Aug 14, 2025 - 5.61 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.57.0
Source code released under Apache License 2.0
Download file
Version 0.56.0
Released Aug 6, 2025 - 5.64 MB
Works with firefox 135.0 and later
View main release notes here: https://github.com/Automattic/harper/releases/tag/v0.56.0
Source code released under Apache License 2.0
Download file
Version 0.55.0
Released Aug 4, 2025 - 5.62 MB
Works with firefox 135.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v0.55.0
Source code released under Apache License 2.0
Download file

Latest version

Version 1.5.1

Older versions

Version 1.4.1

Version 1.3.0

Version 1.2.0

Version 1.1.0

Version 1.0.0

Version 0.73.0

Version 0.72.0

Version 0.71.0

Version 0.70.0

Version 0.69.0

Version 0.68.0

Version 0.67.0

Version 0.66.0

Version 0.65.0

Version 0.64.0

Version 0.63.0

Version 0.62.0

Version 0.61.0

Version 0.60.0

Version 0.59.0

Version 0.58.0

Version 0.57.0

Version 0.56.0

Version 0.55.0