Empathy test for color blindness and visual impairment. This add-on emulates 8 types of color blindness, plus grayscale to check the contrast of your website.
https://vinceumo.github.io/A11Y-Color-Blindness-Empathy-Test/

A11Y - Color Blindness Empathy Test
A11Y - Color Blindness Empathy Test is a Firefox add-on that allows you to test and simulate color blindness. It provides 8 types of color blindness and grayscale options to check the contrast of your website.
Add-on stats
Manifest V2
By: Vincent Humeau
Rating: 3.88
(8)
Weekly download count: 7
Firefox on Android: No
Permissions:
- activeTab
Size: 18.62K
URLs: Website
Other platforms
Not available on Android
Not available on Edge
User reviews
by 远离中共邪教快退出党团队, 2025-02-19
None of the options other than grayscale work for me.
by ýñ, 2024-10-08
Loved using this to ensure my products were colorblind accessible. Includes a lot more colorblind options than other tests I've used. Other tests don't include vision loss either. Worked great for a long time but more recently has been lagging or just not working at all. Think it's been a number of years since it's been updated. A new update is needed please!
by glo24, 2024-07-09
Add-on safety
Risk impact
A11Y - Color blindness empathy test does not require any sensitive permissions.
Risk impact analysis details
- Low Request access to the following domains:
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of A11Y - Color blindness empathy test. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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