I think fb is so quirky! I did not install my updates because I am just over it. Sometimes if holding it down doesn't work, you sld have a button on your device which brings up options for the picture/post. There sld be a selection that says "more" or it may just give you the "share" option right off the bat. Select "share" and if you just want it for your gallery email it to yourself and save it from the email instead of fb.
~Life isn't like a box of chocolates. It's more like a jar of jalapenos, what you do today may burn your a** tomorrow.