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Preview of Persian RTL Fix for AI Chats

Persian RTL Fix for AI Chats by Dr.TTY

Fixes Persian (Farsi) right-to-left text rendering and improves readability in ChatGPT, Claude, Gemini and user-added custom sites.

5 (3 reviews)5 (3 reviews)
44 Users44 Users
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Extension Metadata

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Main page for manage fonts : add fonts , delete fontsChange font size and othercustom sites can be added to be supports,
Select sites to apply settingsReport page
About this extension
Persian RTL Fix for AI Chats (Rastnevis) improves the display and readability of Persian (Farsi) text across popular AI chat platforms.

Many AI chat interfaces are primarily designed for left-to-right languages. This can cause Persian text, punctuation, numbers, links, and mixed Persian-English content to appear misaligned or difficult to read. Rastnevis automatically detects Persian content and applies appropriate right-to-left formatting while preserving the original website functionality.

Features:

• Improves right-to-left rendering for Persian content
• Handles mixed Persian and English text, numbers, punctuation, and links
• Keeps source code, technical content, ASCII diagrams, and flowcharts left-to-right
• Supports dynamically generated and streamed AI responses
• Optimized for editable fields and ProseMirror-based chat composers
• Supports open Shadow DOM and compatible embedded frames
• Includes optional readability, line-height, and font controls
• Supports custom local fonts in TTF, OTF, WOFF, and WOFF2 formats
• Provides independent enable/disable controls for each website
• Allows users to add custom websites with explicit Firefox permission
• Includes an optional user-initiated problem-reporting feature
• Lightweight and optimized to avoid unnecessary full-page scans

Supported Websites:

• ChatGPT — chatgpt.com
• Claude — claude.ai
• Gemini — gemini.google.com
• DeepSeek — chat.deepseek.com
• Qwen — chat.qwen.ai
• Kimi — kimi.com and kimi.moonshot.cn
• Doubao — doubao.com
• Tencent Yuanbao — yuanbao.tencent.com
• User-defined websites added through the extension settings

Optional Problem Reports:

Users can optionally report an RTL rendering problem from the extension interface. Reports are never sent automatically.

Before sending, users can:

• Enter their own description
• Preview the captured screenshot
• Remove the screenshot
• Exclude the full page URL
• Review what will be submitted

Privacy:

The core RTL formatting functionality does not collect or transmit user data.

Extension settings and custom fonts remain stored locally on the user's device. Custom font files are never uploaded.

A problem report is transmitted only after an explicit user action and Firefox permission. Depending on the options selected by the user, a report may contain:

• The description entered by the user
• Extension version and technical diagnostics
• Relevant extension settings
• Page title and hostname
• Full page URL, only when selected
• A screenshot of the visible page, only when selected

Passwords, cookies, login credentials, and custom font files are not intentionally collected or transmitted. There is no background telemetry or automatic reporting.

Persian RTL Fix for AI Chats is designed to provide a cleaner, more natural reading and writing experience for Persian speakers while keeping users in control of website access and optional report data.
Rated 5 by 3 reviewers
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Permissions and data

Required permissions:

  • Access your data for chatgpt.com
  • Access your data for claude.ai
  • Access your data for gemini.google.com
  • Access your data for chat.deepseek.com
  • Access your data for chat.qwen.ai
  • Access your data for kimi.com
  • Access your data for www.kimi.com
  • Access your data for kimi.moonshot.cn
  • Access your data for doubao.com
  • Access your data for www.doubao.com
  • Access your data for yuanbao.tencent.com

Optional permissions:

  • Access your data for rastnevis-report-api.drtty.workers.dev

Data collection:

  • The developer says this extension doesn't require data collection.

Optional data collection, according to the developer:

  • Browsing activity
  • Personal communications
  • Technical and interaction data
  • Website content
Learn more
More information
Add-on Links
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Version
2.1.3
Size
300.87 KB
Last updated
a day ago (Aug 1, 2026)
Related Categories
  • Appearance
  • Language Support
  • Social & Communication
License
MIT License
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • chat
  • scholar
  • user scripts
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