I have chanced from 9.4 to Version 10
Now by opening a file in the IE-plugin, I can't save the open file direct in the ie-plugin
because the filesave-icon (disk-symbol) is missing
Is there a possibility to insert/unhide the icon?
Can you try moving your mouse to the bottom centre of the PDF document in IE. This should enable the display of a small Acrobat Reader ribbon in the bottom centre of the document with all the necessary icons like Print, Save etc. Guess this is what you are looking for.
F8 - key was my friend