Chrome Norton Security Toolbar conflicts with GoogleDocs cursor

When the Norton Security Toolbar Chrome extension (2015.5.0.121) is enabled, the cursor in a newly opened GoogleDoc will appear higher in the text by a line or two than where it acts when clicked or typing. I’ve found this phenomenon on multiple documents. I’ve found two ways to solve this, neither ideal.

  1. change the zoom in the document to 90% then back to 100%. This only works temporarily until the next time I open the document
  2. disable the Norton Security Toolbar. I’ve tried all other extensions that I have currently installed. This is the only one that is linked to the problem.

Can Norton address this clash?

Thanks!