WebAssembly in WebExtensions?

[platy (Mike)]

Are there any guidelines or considerations for using WebAssembly in WebExtensions? I’m also talking about having them published on AMO.

• Is all the WebExtension functionality available in each of the extension contexts?
• Is there anything to consider to help review apart from including the source and repeatable build instructions?

[freaktechnik (Martin Giger)]

Is all the WebExtension functionality available in each of the extension contexts?

If you mean a webassembly context, no because there is no API exposed directly to webassembly (like you currently can’t directly access the DOM).

Is there anything to consider to help review apart from including the source and repeatable build instructions?

uBlock origin seems to have web assembly parts (https://github.com/gorhill/uBlock/tree/master/src/js/wasm) which is mostly documented in the ways you’re describing. I don’t think there have been any updates regarding expectations toward web assembly sources specifically (see https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Source_Code_Submission )

[platy (Mike)]

Great - I’ve got no reason not to give it a try then - Thanks!