Scribens correcteur dorthographe et de grammaire is a robust spelling and grammar checker designed for the Firefox platform. This subscription-based tool highlights errors directly within your text, making it easy to spot and correct mistakes. It supports correction in both French and English and is compatible with over 500 websites and applications including popular messaging services like Gmail, Outlook, and social media platforms such as Facebook and Twitter. Users can easily activate the tool by clicking the Scribens icon in the text area.

The tool offers a free version with limitations of up to 50,000 characters, while the Premium version provides additional features without requiring registration. Scribens also suggests style improvements, enhancing the overall quality of your writing. It integrates seamlessly with various office applications, ensuring a comprehensive proofreading experience.