Layout shift a11y checker
Override existing type styles with the accessible requirements to test for WCAG 2.1 criterion for Text Sizing, 1.4.12.
Layout shift a11y checker - Firefox Add-on
Layout shift a11y checker is a Firefox add-on that allows you to test for WCAG 2.1 criterion 1.4.12 by automatically applying the required CSS properties. No need to jump into devtools anymore!
Add-on stats
Weekly download count: 1
Firefox on Android: No
Risk impact: Moderate risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- storage
Size: 12.51K
URLs: Website
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary
Test for WCAG 2.1 criterion for Text Sizing 1.4.12 by automatically applying the required CSS properties. No more jumping in devtools to do it!
Add-on safety
Risk impact
Layout shift a11y checker requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
Layout shift a11y checker has earned a fairly good reputation and likely can be trusted.
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