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Best Firefox Alternatives for Grammarly

Searching for a Grammarly alternative? Check out our top-rated Firefox extensions that work just like Grammarly: AI Writing and Grammar Checker.

Here is our list of the best Grammarly alternatives, available in the Mozilla Firefox Add-ons Store:

8.8
LanguageTool
LanguageTool impressed us as a solid grammar-checker alternative to Grammarly. It provides excellent multilingual support, is easy to use, and is more affordable. However, it may struggle with longer texts. Great for multilingual users.
Writing Education