I'm using Quicken Classic for Windows and the Quicken Retail Purchase Categorization Edge extension. With the extension enabled, Gmail's compose window begins shaking/flickering when I click in the message to edit it, making editing impossible.
I isolated the problem as follows:
• Edge + extension enabled: Gmail compose window shakes
• Edge + extension disabled: Gmail works normally
• Edge InPrivate: Gmail works normally
• Firefox: Gmail works normally
This appears to be an incompatibility between the Retail Purchase Categorization extension and Gmail in Edge. The extension was recently updated, so I thought Quicken should be aware of the problem.