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An extension to WebAssembly adding sign-extension operator instructions
Last updated on : 2025-03-16
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
WebAssembly Sign Extension Operators on IE is not supported on any IE versions.
WebAssembly Sign Extension Operators on Edge is fully supported on 79-133, and not supported on 12-18 Edge versions.
WebAssembly Sign Extension Operators on Firefox is fully supported on 62-138, and not supported on 2-61 Firefox versions.
WebAssembly Sign Extension Operators on Chrome is fully supported on 74-136, and not supported on 4-73 Chrome versions.
WebAssembly Sign Extension Operators on Safari is fully supported on 14.1-18.4, and not supported on 3.2-14 Safari versions.
WebAssembly Sign Extension Operators on Opera is fully supported on 62-114, and not supported on 9.5-60 Opera versions.
WebAssembly Sign Extension Operators on Safari on iOS is fully supported on 14.5-18.4, and not supported on 3.2-14 Safari on iOS versions.
WebAssembly Sign Extension Operators on Android Browser is fully supported on 123-133, and not supported on 2.3-4 Android Browser versions.
WebAssembly Sign Extension Operators on Opera Mobile is fully supported on 80-80, and not supported on 10-12 Opera Mobile versions.
WebAssembly Sign Extension Operators on Chrome for Android is fully supported on all Chrome for Android versions.
WebAssembly Sign Extension Operators on Firefox for Android is fully supported on all Firefox for Android versions.
WebAssembly Sign Extension Operators on Samsung Internet is fully supported on 11.1-27, and not supported on 4-10.1 Samsung Internet versions.
Data sourced from
Overall Browser Compatibility Score
Note:WebAssembly Sign Extension Operators shows a browser compatibility score of 88. 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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