This is starting to look like it is microsoft and browsers starting to lock out flash player all together!
Win 10 just did an update on my rig this morning, and now WGT has to be "allowed to play once" each time it is opened!
This is what I get in edge:
The same popup is clicked a second time to get the main game to run as well, and you can still adjust the sliders in the game settings.
In firefox I get this:
You will notice, there is no slider to adjust for storage, and there does not seem to be any way to get around it!
I also, can not adjust any slider settings in the audio section of the game.
Every attempt to do so brings up the flash setting window above.
Changing the flash player setting via the control panel has no affect on this at all.
Maybe it is time for WGT rebuild the client?? As a bonus, that would be a good time to get real HD content into the game.
Thanks for your time on this!
Good luck, have fun, and play well!