どうやら、ニコニコ動画のバッファリング（読み込み）が途中で止まって、サイトをリロードするまで再生を続行できなくなってしまう問題があるようです。

This addon does *something* but I can only guess how it works internally. If it only looks for .wasm files in the network stream, it's not helpful on "modern" webassembly sites like www.truist.com and www.firstenergycorp.com which mime encode (?) the binary data in the page and create an object through JavaScript, i.e. var i = new WebAssembly.Module(x).

Doesn't work, or is no longer working. As tested in:
https://wasmbyexample.dev/examples/hello-world/demo/rust/

Does not work for me (no icon, no detection). FF71 win10.

Thx for the addon.