And why I used Firefox in preference to Chrome.

That's why a sync is required to see the results. Chrome always has saved to server, not to 'local'. Unless there's a change, Firefox Clipper now saves to the server version of your account, and not to the installed client on your local machine. Switch off updating - Firefox 'burger' menu > Add-ons > Extensions > Web Clipper Options - scroll down: set Automatic Updates to OFF

You can step back to an earlier version and switch off the auto updates (NB this will mean all your add-ins are frozen - you'll have to update them individually as necessary) by uninstalling the current version and going here for the earlier one.

Your clipper will have updated to the new version automatically, but while it should be faster and more reliable, it now excludes the option to clip to your local hard drive and will only clip to the web - hence the need to sync before you see the clip as a note. Additionally I have to sign into webclipper. In both browsers, when I clip, the clip isn't migrating into the desktop EN. I am running the latest version of Chrome and Firefox and respective latest versions of EN webclippers.

Evernote web clipper review