Acrobat XI

Hello

I have Acrobat XI Pro v11.0.15.15 installed on my PC.

When I open it as a stand-alone program all the toolbar buttons I have selected are visible and available to me.  However whenever it opens in Internet Explorer 11 to view a PDF fie it only shows a basic set of toolbar buttons and, even though I try adding more, it never remembers my settings and they all disappear the next time I open a PDF file in IE11.

Does anyone have any thoughts/solutions to this please?

Many thanks

Philip