Mar 16, 2022, 4:28:47 PM3/16/22
In firefox 96 on linux both of these features are implemented and functional(maybe I set a flag somewhere ages ago?), however in firefox 98 on MacOS neither work, caniuse shows them as not supported, the bugzilla issue tracking adoptedStyleSheets was closed as resolved two years ago.
What's the official stance on these features? I'd really like to use them to not have style tags in shadow dom, especially for custom elements that may be instantiated in the hundreds if not thousands.