Grammar and Spell Checker - LanguageTool by LanguageTooler GmbH

4.7 Stars out of 5

Grammar and Spell Checker - LanguageTool 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 9.0.1
Released Jul 21, 2025 - 14.71 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
You'll need Firefox to use this extension
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Older versions
Version 8.19.4
Released Apr 8, 2025 - 14.02 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
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Version 8.18.4
Released Mar 11, 2025 - 13.89 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
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Version 8.14.3
Released Dec 30, 2024 - 12.82 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
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Version 8.13.2
Released Nov 29, 2024 - 12.07 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.11.8
Released Aug 23, 2024 - 11.47 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.11.7
Released Aug 15, 2024 - 11.46 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.11.6
Released Aug 7, 2024 - 11.96 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.11.2
Released Aug 1, 2024 - 11.96 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.10.4
Released Jul 10, 2024 - 11.88 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.9.1
Released Jun 5, 2024 - 11.77 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.6.0
Released Mar 14, 2024 - 10.68 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.3.0
Released Nov 23, 2023 - 10.66 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 8.2.2
Released Nov 17, 2023 - 10.1 MB
Works with firefox 78.0 and later
Source code released under All Rights Reserved
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Version 7.1.13
Released Jun 22, 2023 - 10.07 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 6.2.5
Released Mar 20, 2023 - 10.18 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 6.2.2
Released Feb 28, 2023 - 10.12 MB
Works with firefox 60.0 and later
Several bug fixes; a new way to turn off the add-on (hover over the icon)
Source code released under All Rights Reserved
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Version 6.0.1
Released Nov 24, 2022 - 10.13 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 5.8.10
Released Nov 5, 2022 - 7.66 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 5.8.6
Released Oct 30, 2022 - 7.66 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 5.4.3
Released Aug 7, 2022 - 7.28 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 5.3.3
Released Jul 12, 2022 - 6.95 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 5.3.0
Released Jun 17, 2022 - 6.95 MB
Works with firefox 60.0 and later
Activate the paraphrasing feature for more users
Source code released under All Rights Reserved
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Version 5.2.4
Released Jun 10, 2022 - 6.8 MB
Works with firefox 60.0 and later
Roll-out of the Rephrasing feature (see synonyms feature)
Source code released under All Rights Reserved
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Version 5.2.3
Released Jun 1, 2022 - 6.79 MB
Works with firefox 60.0 and later
Synonyms feature has been extended with sentence rephrasing (English only for now). Bug fixes.
Source code released under All Rights Reserved
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