Claude RTL Fix Firefox

Claude RTL Fix

Fixes Hebrew, Arabic, and other right-to-left text rendering on claude.ai. Click the icon to toggle on/off.

Features & Capabilities

Claude.ai does not set the correct text direction on message content, so Hebrew, Arabic, Farsi, and other right-to-left scripts render with broken alignment, misplaced punctuation, and reversed parentheticals. This extension fixes that.

[Need a desktop-app solution for Windows or macOS? checkout the repo: https://github.com/BloodyDeathRoll/RTL-Claude-App/releases]

How it works:

  • Each block of text in a Claude message (paragraphs, list items, headings, blockquotes, table cells) is given the standard HTML attribute dir="auto", which lets the browser's built-in Unicode bidi algorithm pick the correct direction based on the first strong-directional character in the block.
  • This handles mixed-language messages correctly. An English paragraph followed by a Hebrew paragraph followed by code will each render with the right direction, automatically.
  • Code blocks (pre, code, kbd, samp, var) are explicitly forced to dir="ltr", so file paths, shell commands, and source code stay correctly oriented even inside an otherwise right-to-left message.
  • A MutationObserver re-applies the fix as Claude streams new tokens in, so it works during live response generation, not just on already-rendered content.
Click the toolbar icon to toggle the extension on or off. The setting persists across page loads. When toggled off, all changes are reverted immediately without needing a reload.

Privacy: this extension does not collect, transmit, or store any data. It only reads the DOM of pages on claude.ai and adds standard HTML direction attributes. No network requests, no analytics, no telemetry.

Source code: see the support site link.

AIC now and always

User Growth & Download Statistics

Manifest V3 Add-on
By:
Shahar Naor
Daily users:
28 7
Version:
1.6.0 Last updated: 2026-06-17
Version code:
6310718
Creation date:
2026-05-07
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • https://claude.ai/*
  • https://*.claude.ai/*
Content scripts matches:
  • claude.ai
  • *.claude.ai
Size:
20.93KB
Email:
sh*****@outlook.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Shahar Naor
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/claude-rtl-fix/
Email:
sh*****@outlook.com
Website:
https://shaharnaor.com

Is Claude RTL Fix Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Claude RTL Fix requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
  • High ******* ****** ** *** ********* ******** *********
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Claude RTL Fix is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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