Currently Localsaving (downloading the save file) and Cloudsaving (if you have a username / pw combination setup) should work. Autosaving is currently disabled as it can crash the game for advanced saves.
I guess this has something to do with the fact that Mozilla doesn't support the Unity Webplayer. In order to be able to scroll the pyramids up/down, your mouse needs to be in the right 2/3 of the screen, where the pyramids are. Scrolling in the first 1/3 of the screen only works when moving the scarab page up/down.
Currently Localsaving (downloading the save file) and Cloudsaving (if you have a username / pw combination setup) should work. Autosaving is currently disabled as it can crash the game for advanced saves.