Merlin
OpenDyslexic for Firefox

OpenDyslexic for Firefox

Open-Dyslexic is an open sourced font created to increase readability for readers with dyslexia. This extension overrides all fonts on web pages with the OpenDyslexic font, and formats pages to be more easily readable.

OpenDyslexic for Firefox promo image
What is OpenDyslexic for Firefox?

'OpenDyslexic for Firefox' is an extension that enhances readability for dyslexic readers. It overrides all web page fonts with an open-source font specifically designed to prevent common reading errors related to dyslexia. The font features heavily weighted bottoms to indicate letter orientation and unique letter shapes to prevent letter confusion.

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Stats
Stats date:
Users: 895 ▲ 12
Version: 20.1.0 (Last updated: 2022-09-07)
Creation date: 2018-05-21
Weekly download count: 48
Firefox on Android: No
Manifest version: 2
Permissions:
  • activeTab
  • storage
Size: 350.08K
Email: Click to see
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Chrome-Stats Rank

# 3169 ▲ 32
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Other platforms

Not available on Chrome
Not available on Edge
Merlin
Summary
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ABOUT

Open-Dyslexic is an open sourced font created to increase readability for readers with dyslexia. This extension overrides all fonts on web pages with the OpenDyslexic font, and formats pages to be more easily readable.

Your brain can sometimes do funny things to letters. OpenDyslexic tries to help prevent some of these things from happening. Letters have heavy weighted bottoms to add a kind of "gravity" to each letter. You are able to quickly figure out which part of the letter is down because of this feature. It aids in recognizing the correct letter and sometimes helps to keep your brain from rotating them around. Consistently weighted bottoms can also help reinforce the line of text. The unique shapes of each letter can help prevent confusion through flipping and swapping.

Open-Dyslexic has recently received favorable coverage from the BBC (http://bbc.com/news/technology-19734341) and is included in many iOS and Android apps.

Unlike much other dyslexia or DRD typefaces, OpenDyslexic is completely free for individuals, companies, schools, and in short: everyone.

MAINTAINER

This extension is being maintained by Robert James Gabriel (http://robertgabriel.ninja). Thanks, Robert James Gabriel!

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User reviews
I am writing this review after seeing the 1 star review. Even made an account for it. I have been using this addon for a while on vanilla FireFox, but also have just added it to LibreWolf (Basically a more secure version of FireFox). This seems to be the only dyslexia add-on that works on LibreWolf, which I honestly do not mind, as this add-on hasn't let me down yet. The text is easy to read, and more importantly to myself, its as easy to use as adding it and turning it on. While I do not have the technical know-how to verify how safe this add-on is, I personally trust and will continue to use it. Additionally, if you're anything like me, this is also useful for those who have difficulty reading but do not have dyslexia. Such as poor vision, astigmatism, visual snow, so on and so forth.
by Bug, 2023-11-30
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Safety
Risk impact

OpenDyslexic for Firefox is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install OpenDyslexic for Firefox if you trust the publisher.

Risk likelihood

OpenDyslexic for Firefox has earned a fairly good reputation and likely can be trusted.

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Screenshots
OpenDyslexic for Firefox OpenDyslexic for Firefox