CSS Feature Toggles

A devtools extension to toggle support of selected CSS features for testing progressive enhancement fallbacks.

CSS Feature Toggles: A Devtools Extension for Chrome

'CSS Feature Toggles' is a Chrome extension for developers. It offers the ability to disable support for modern CSS features like flexbox, grid or blend-modes from devtools. By doing this, developers can view how their websites/apps will appear in browsers that lack support for these features. This assists in ensuring compatibility and progressive enhancement across diverse browsers.
Install from Chrome Web Store

Extension stats

Users: 1,000+
Rating: 5.00
(4)
Version: 1.0.2 (Last updated: 2020-02-27)
Creation date: 2020-02-27
Risk impact: Low risk impact
Risk likelihood:
Manifest version: 2
Size: 38.32K
URLs: Website

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge
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Extension summary

This extension allows developers to disable support of modern CSS features from devtools. Disabling features such as flexbox, grid or blend-modes allows developers to see how their pages/apps will render in browsers that don't support them.

User reviews

It saved me a lot of time checking the Graceful Degradation of my CSS. Thanks
by Amadeusz Chomiak, 2021-06-18

Useful extension for testing how your site/app can look on browsers which don't support certain features.
by christian oliff, 2019-02-01
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Extension safety

Risk impact

CSS Feature Toggles requires very minimum permissions.

Risk likelihood

CSS Feature Toggles has earned a good reputation and can be trusted.

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Promo images

CSS Feature Toggles small promo image
Small promo image

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