Thanks to all the kind folks who replied to my original post. I received good advice: to reinstall Adobe Reader. I reinstalled Reader and now if I click on a pdf file online, it opens in a Safari window, and I can then download it to my desktop. I can live with that, it is better than before. > If I control click on the pdf URL, I have the options of 'Open Link' and 'Download linked file'. Open Link opens the file in a browser window. 'Download linked file' does nothing. - If I open the Downloads Window, it is quite empty. But choosing Open Link, and then Saving the file is a good-enough work-around. Mike