Pictures in Safari

Hello all.....Have had my iMac for a bit over a year and so far love it. I do have two small problem though.

first... In Safari when I click on a thumbnail picture it used to list 3 options.
1. Open in slide show
2. Add to one drive
3. Download

Now it just lists the last two. Is there something I can do to get back the first option??

Second....Every time I open mail now it says "some thing happened on our end, please refresh your browser" I do and it works okay after that. (except for the first problem of course) Why does it do that all of a sudden?


Thanks in advance for your help.

Imac-late 2013 model. 2.7 GHz intel core i5, 8 Gb 1600 MHz DDR3,osx 10.9.5

Just so you are up to date. I used Onyx and reset permissions and cleaned the cashes as well. No change.