Web clipper sporadically working for months now and as of this month it is just not working. Using Safari 11.1 on MacBook Pro with OS High Sierra 10.13.4. I have tried to find as much posted on fixing this problem and have repeatedly followed the directions I have found in terms of uninstalling, clearing history, force quit safari, restart Mac, open Safari, install clipper from website, choose directly from developer, etc, etc. Nothing is working to get this functioning again. The only other extension I have installed is 1Password.