ok - it should be where the pinterest and amazon buttons are. Try disabling your other Safari extensions (and please do confirm that you have the Zotero extension installed _in Safari_)
Restarted the computer. Now it works.
FireFox needs not the Stand Alone version, maybe it is what you mean by "online version"
Those two are identical in content.
no, by "online" I really do mean online, i.e. the version of your library on zotero.org - if Standalone isn't open or, for whatever reason, not detected by the Safari connector, items will save directly to your online library.
Z works on any page in FF but not in Safari
to get the equivalent of the "Create new Webpage Item" button in Zotero for Firefox in Safari, just right-click (ctrl+click) anywhere in the page and select "Save as Zotero Snapshot". Only thing that won't work for is PDFs.
If so, do you get a URL bar icon (note that it's to the left of the URL bar in Safari) for http://www.worldcat.org/title/wealth-of-nations-books-i-iii/oclc/8424650&referer=brief_results ?
https://www.dropbox.com/s/56lxkmq3q5gk1uq/Screenshot%202014-03-28%2017.17.41.png
I am quite perplexed.
On hovering says: Z is offline. The icon is greyed. Not clickable
Did you try on the worldcat page above?
It is not in Z My Library (sorted by date)
FireFox needs not the Stand Alone version, maybe it is what you mean by "online version"
Those two are identical in content.