Just noticed when following the learn more link to the 1password watchtower web page (when there's a banner in 1p to change a password) it drives chromes cpu usage up like crazy. Not sure what it's doing, but I had a hard time scrolling that page, and until I killed that tab, the cpu usage was going nuts.
You could see it in Activity Monitor, but didn't see anything using chromes task manager so not sure what tt's doing.
I am using 2 EFF extensions (https everywhere and privacy badger) which might make it worse. It gets a little bit better when I disable those 2 extensions, but the cpu usage is still wildly out of control as long as a tab to a 1p watchtower page is open. What could that page possibly be doing? One thing I noticed is that there's an outline for something called Nav-agilebits in the upper left that never gets filled in. The page is not actively loading according to chrome (the spinner isn't spinning) so there's nothing to stop.
1Password Version: 6.6.BETA-4
Extension Version: 126.96.36.199
OS Version: macOS Sierra 10.12.3
Sync Type: Dropbox