Thanks Chris for all your efforts. I actually prefer the new UI taking less space and where I can more easily access items without going into submenus, eg Outline-Tables-Table Cells or Forms - Convert method - Post to get, the new version achieves this with fewer clicks.
I understand that all missing features are caused by the change in the Firefox API, but I see some people complaining about features that are still available, eg View CSS.
I mostly regret the former "Disable" menu (Disable cache, referrer, proxy) but the extension is still extremely useful to me and I am grateful for the work done by Chris.