mrstucci I, too, had a problem with the new Safari web clipper not working but it is resolved. My Macbook pro Mac isrunning Yosemite 10.10.4 and Safari 8.0.7. Evernote Web Clipper says it's 6.5 . This is how you resolve the issue. First, Restart your computergo to Safari browser at the top of your computer screen, top leftat the top left of screen, click on the word Safariyou will see a dropdown menu, then click on Preferencesyou will see a box with a choice of areas in the computer, for General, Tabs, Autofill, Passwords, Search,Security, Privacy,Notifications, Extensions,..click on Extensionsyou will see another box with your Extensions listed, there is also and on and off switch My computer showed the switch on, on the left side of screen showed my One Extension Evernote Web Clipper. On the right of the screen it said Evernote Web Clipper 6.5.1, the box was checked for Enable Evernote Web clipper.Click on Uninstall button for Evernote web clipper 6.5.1 and any other Extensions listed (you can reinstall those extensions once the clipper is download and working. Restart your computer. Now Reinstall Evernote safari Web clipper and restart your computer! The Safari Evernote Web clipper should be working now, check again in Safari Preferences and you should see it Reinstalled. My problem was that my husband uses the same laptop, has in own log-in, ... He was the one with Extensions, so I had to follow the above steps to prevent the Extensions from blocking me. Now that all is working it is ok to reinstall your Extensions. Good luck.