[Crespyl]

Old extensions won't ever really work again, but part of me is still kind of holding out hope for WebExtensions API features for things like "allow extension on 'system' pages (new tab, settings, etc)", "focus addressbar", "hide/replace address/tab bars", etc.

Some of those are coming or pretty much ready (tab hiding, addressbar focus), and others I've almost given up on, given how Mozilla seems to have changed their philosophy.