I use a fully-updated Firefox (52.0.2 64-bit) on fully-up-to-date Windows 10 Home 64-bit. I have been using AIOS for about 2 months.
When I first installed this extension, almost everything (except Downloads) worked great. When from the menus I selected "History -> Show All History" or "Bookmarks -> Show All Bookmarks" the pages got loaded into the AIOS. But now they don't. There was originally a problem with "Tools -> Downloads", and I opened an Issue for that, but now that is the ONLY things that DOES get loaded in AIOS.
I have looked at the Panels Tab in the AIOS Options, and everything is checked BUT "Add-ons".