Hello, I was looking at WXT extension framework which supports multiple UI frameworks, but they are all JavaScript frameworks only. Is there any alternative way to write Firefox browser extension in a different language (like Rust / Python / Go, etc.) with minimal or no JavaScript, with a ok developer experience?
Transpilation to JavaScript is fine if it is well supported in Firefox with ok developer experience.
I also checked Dart but its support on Firefox does not seem great, like the extension only works on Chrome browsers.


Yes its kind of possible with F# and Fable. I did it a few years ago. I say kind of because its still transpiling to javascript.