Grammar and Spell Checker - LanguageTool
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
Total ratings
4.69
(Rating count:
4,267)Review summary
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Works seamlessly across all websites unlike competitors (e.g., Grammarly)
- Helpfulness in copywriting
- Better than other alternatives in the free version
- Fast and precise corrections reported by some users
Cons
- Inconsistent corrections, suggesting incorrect tense changes
- Issues with custom server support after specific updates
- Breaks spell checking completely for some users
- Difficulty in activating correction pop-ups
Most mentioned
- Issues with tense correction and context understanding
- Problems after updates causing loss of functionality
- Seamless operation across different websites compared to competitors
Upgrade to see all 1,563 reviews
User reviews
Recent rating average:
3.20
All time rating average:
4.69
Upgrade to see all 1,563 reviews
Rating filters
5 star 4 star
3 star
2 star
1 star
| Date | Author | Rating | Comment |
|---|---|---|---|
| 2025-01-21 | jl319 | | They can see everything you write, and they record that unencrypted data. I should never have even tried this. |
| 2025-01-20 | Firefox user 17468656 | | Has become very stupid. Makes incorrect "corrections" constantly, gets tense wrong, does not know words exist (it tried to correct 'withering' to 'dithering' for no reason). Used it for a while but have had to stop because it's irritating more than helping. |
| 2025-01-20 | Dynamax | | |
| 2025-01-17 | PhoenixCausesOof | | |
| 2025-01-17 | IZABEL SOMAIO | | |
| 2025-01-17 | aken | | |
| 2025-01-16 | Firefox user 18784975 | | Does not work with custom server anymore. Does not even send a request and then times out. It works with 8.11.2 so I reverted to that one. Edit: 8.13.2 also works, so seems like you introduced a problem when updating to 8.14 which seems to have been a major update. I went with 8.11.2 first because that was the version that is currently still working in thunderbird. Not really keen on making an account just to report it. |
| 2025-01-16 | charles frickert | | |
| 2025-01-15 | Таисия Лиса | | хорошо помогает в копирайтинге |
| 2025-01-14 | xderpx | | The amount of times it suggests changing the tense to be incorrect is staggering. Sometimes I will accept its suggestion, then it immediately changes its mind and suggests I undo its suggestion. It also strongly suggests breaking sentences up to be grammatically incorrect. It is consistently dumb and only gets it right 50% of the time. I can't recommend it. |
Upgrade to see all 1,563 reviews