Trusted by 2 Mn+ QAs & Devs to accelerate their release cycles

An extension to WebAssembly import and export of mutable global variables
Last updated on : 2025-03-16
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
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 79-133, and not supported on 12-18 Edge versions.
WebAssembly Import/Export of Mutable Globals on Firefox is fully supported on 61-138, and not supported on 2-60 Firefox versions.
WebAssembly Import/Export of Mutable Globals on Chrome is fully supported on 74-136, and not supported on 4-73 Chrome versions.
WebAssembly Import/Export of Mutable Globals on Safari is fully supported on 12-18.4, and not supported on 3.2-11.1 Safari versions.
WebAssembly Import/Export of Mutable Globals on Opera is fully supported on 60-114, and not supported on 9.5-58 Opera versions.
WebAssembly Import/Export of Mutable Globals on Safari on iOS is fully supported on 12-18.4, 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 123-133, 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 11.1-27, and not supported on 4-10.1 Samsung Internet versions.
Data sourced from
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.
Test on 3000+ browsers for WebAssembly Import/Export of Mutable Globals & more
Test your website for WebAssembly Import/Export of Mutable Globals and other web technologies. Get 100 FREE automation test minutes!
Test NowGet 100 minutes of automation test minutes FREE!!
Did you find this page helpful?