CSS Feature Toggles - Chrome Web Store
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CSS Feature Toggles


4 ratings

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

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.

5 out of 54 ratings

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Amadeusz Chomiak18 Jun 2021

It saved me a lot of time checking the Graceful Degradation of my CSS. Thanks

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christian oliff1 Feb 2019

Useful extension for testing how your site/app can look on browsers which don't support certain features.


  • Version
  • Updated
    27 February 2020
  • Size
  • Languages
    English (UK)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


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