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WebAssembly Import/Export of Mutable Globals

An extension to WebAssembly import and export of mutable global variables

Last updated on : 2025-11-11

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 18

79 - 142

2 - 60

61 - 147

4 - 73

74 - 145

3.2 - 11.1

12.1 - 26.2

9.5 - 58

60 - 122

Fully Supported

Partially

No Support

Browser Compatibility

WebAssembly Import/Export of Mutable Globals on IE is not supported on any IE versions.

WebAssembly Import/Export of Mutable Globals on Edge is fully supported on 79-142, and not supported on 12-18 Edge versions.

WebAssembly Import/Export of Mutable Globals on Firefox is fully supported on 61-147, and not supported on 2-60 Firefox versions.

WebAssembly Import/Export of Mutable Globals on Chrome is fully supported on 74-145, and not supported on 4-73 Chrome versions.

WebAssembly Import/Export of Mutable Globals on Safari is fully supported on 12.1-26.2, and not supported on 3.2-11.1 Safari versions.

WebAssembly Import/Export of Mutable Globals on Opera is fully supported on 60-122, and not supported on 9.5-58 Opera versions.

WebAssembly Import/Export of Mutable Globals on Safari on iOS is fully supported on 12-26.1, and not supported on 3.2-11.3 Safari on iOS versions.

WebAssembly Import/Export of Mutable Globals on Android Browser is fully supported on 123-142, and not supported on 2.3-4 Android Browser versions.

WebAssembly Import/Export of Mutable Globals on Opera Mobile is fully supported on 80-80, and not supported on 10-12 Opera Mobile versions.

WebAssembly Import/Export of Mutable Globals on Chrome for Android is fully supported on all Chrome for Android versions.

WebAssembly Import/Export of Mutable Globals on Firefox for Android is fully supported on all Firefox for Android versions.

WebAssembly Import/Export of Mutable Globals on Samsung Internet is fully supported on 11.1-29, and not supported on 4-10.1 Samsung Internet versions.

Browser Support for WebAssembly Import/Export of Mutable Globals

WebAssembly Import/Export of Mutable Globals on Chrome

WebAssembly Import/Export of Mutable Globals on Safari

WebAssembly Import/Export of Mutable Globals on Firefox

WebAssembly Import/Export of Mutable Globals on Internet Explorer

WebAssembly Import/Export of Mutable Globals on Opera

WebAssembly Import/Export of Mutable Globals on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:WebAssembly Import/Export of Mutable Globals 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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