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.
Latest reviews
- (2021-06-18) Amadeusz Chomiak: It saved me a lot of time checking the Graceful Degradation of my CSS. Thanks
- (2019-02-01) christian oliff: Useful extension for testing how your site/app can look on browsers which don't support certain features.