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The user-modify property has no effect in Firefox. It was originally planned to determine whether or not the content of an element can be edited by a user.
Last updated on : 2023-02-27
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
user-modify on IE is not supported on any IE versions.
user-modify on Edge is fully supported on all Edge versions.
user-modify on Firefox is fully supported on all Firefox versions.
user-modify on Chrome is fully supported on all Chrome versions.
user-modify on Safari is fully supported on all Safari versions.
user-modify on Opera is not supported on any Opera versions.
user-modify on Safari on iOS is fully supported on 5-16, and not supported on 3-4 Safari on iOS versions.
user-modify on Android Browser support is currently unknown.
user-modify on Opera Mobile is not supported on any Opera Mobile versions.
user-modify on Chrome for Android is fully supported on all Chrome for Android versions.
user-modify on Firefox for Android is fully supported on all Firefox for Android versions.
user-modify on Samsung Internet is fully supported on 5-19, and not supported on 4-4 Samsung Internet versions.
Data sourced from
Overall Browser Compatibility Score
Note:user-modify shows a browser compatibility score of 67. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.
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