Language Improver by Dhananjay Kumar

Firefox Language Plugin is an open-source extension that lets you enhance your writing without leaving your browser.

With this plugin, you can:
• Right-click any selected text and choose “Improve Text” or “Correct Grammar”.
• Use the OpenRouter.ai API to perform grammar correction, style enhancement, or rewriting.
• Replace selected text in-place — no copy-paste needed.
• Choose from multiple AI models like GPT-4, Claude, Gemini, and more.
• Keep your privacy — only selected text is sent securely over HTTPS.

How to Use:

Install the plugin.

Open the extension options and add your OpenRouter.ai API key.

Select any text on a webpage.

Right-click → choose “Improve Text” or “Correct Grammar”.

The improved text will appear instantly or replace your selection.

Features:
• Context menu integration.
• Grammar and punctuation correction.
• Text rewriting for clarity and tone.
• Custom model selection.
• Privacy-friendly and open source.

Source Code & Issues:
https://github.com/dhananjayandroid/firefox-language-plugin

Support:
Submit issues or feature requests on GitHub.