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.
Manifest V3
Rating: 4.69
8 new ratings
(4,368)
Weekly download count: 8,069
Firefox on Android: No
Permissions:
- activeTab
- storage
- contextMenus
- scripting
- alarms
Size: 14.57M
URLs: Website ,Privacy policy
Full description: See detailed description
Source: Firefox Browser Add-ons
Updated: 20 hours ago
Ranking
# 46 ▲ 1
Other platforms
User reviews
Pros
- Works well and is not intrusive to the user experience
- Allows users to add to the dictionary
- Fast analysis and corrections
- Cost-effective service
- Helps with numerous errors and typos
Cons
- Sometimes misses obvious spelling mistakes
- Not functioning in all text areas
- Lacks support for some languages (e.g., Czech, Canadian French)
- Has experienced issues with formatting corrections in recent updates
- Occasional incorrect corrections or suggestions
Most mentioned
- The effectiveness of spell checking and grammar correction
- The ability to customize the dictionary
- Intrusiveness of the application
- Issues with language support
- Problems with formatting corrections
These summaries are automatically generated weekly using AI based on recent user reviews. User
reviews may be inaccurate, spammy, or outdated.
User reviews
by Zigurds, 2025-04-07
by Firefox user 18924473, 2025-04-06
Vey good tool thanks
journalistech.com
by JournalisTech, 2025-04-06
Add-on safety
Risk impact
Grammar and Spell Checker - LanguageTool requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Grammar and Spell Checker - LanguageTool has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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