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 1.7.0
Released 11 Feb 2026 - 15.28 MB
Works with firefox 146.0 and later, android 146.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.7.0
Source code released under Apache Licence 2.0
Download Firefox and get the extension
Download file
Older versions
Version 1.6.0
Released 4 Feb 2026 - 14.65 MB
Works with firefox 146.0 and later, android 146.0 and later
See main release notes here: https://github.com/Automattic/harper/releases/tag/v1.6.0
Source code released under Apache Licence 2.0
Download file
Version 1.5.1
Released 22 Jan 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 Licence 2.0
Download file
Version 1.4.1
Released 8 Jan 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 Licence 2.0
Download file
Version 1.3.0
Released 22 Dec 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 Licence 2.0
Download file
Version 1.2.0
Released 11 Dec 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 Licence 2.0
Download file
Version 1.1.0
Released 3 Dec 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 Licence 2.0
Download file
Version 1.0.0
Released 28 Nov 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 Licence 2.0
Download file
Version 0.73.0
Released 24 Nov 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 Licence 2.0
Download file
Version 0.72.0
Released 14 Nov 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 Licence 2.0
Download file
Version 0.71.0
Released 6 Nov 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 Licence 2.0
Download file
Version 0.70.0
Released 27 Oct 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 Licence 2.0
Download file
Version 0.69.0
Released 22 Oct 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 Licence 2.0
Download file
Version 0.68.0
Released 15 Oct 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 Licence 2.0
Download file
Version 0.67.0
Released 6 Oct 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 Licence 2.0
Download file
Version 0.66.0
Released 1 Oct 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 Licence 2.0
Download file
Version 0.65.0
Released 22 Sep 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 Licence 2.0
Download file
Version 0.64.0
Released 15 Sep 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 Licence 2.0
Download file
Version 0.63.0
Released 12 Sep 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 Licence 2.0
Download file
Version 0.62.0
Released 8 Sep 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 Licence 2.0
Download file
Version 0.61.0
Released 2 Sep 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 Licence 2.0
Download file
Version 0.60.0
Released 28 Aug 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 Licence 2.0
Download file
Version 0.59.0
Released 21 Aug 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 Licence 2.0
Download file
Version 0.58.0
Released 18 Aug 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 Licence 2.0
Download file
Version 0.57.0
Released 14 Aug 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 Licence 2.0
Download file

Latest version

Version 1.7.0

Older versions

Version 1.6.0

Version 1.5.1

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