Blinking icon that appears after new credentials or update is easy to be ommited, suggest some pop-up window

[Mcinwwl]

Hey.
Right now when keepasshttp-connector detects new credentials or credential update the addon's icon blinks red for a time specified in settings. Problem is, that is much less noticeable that previous pop-up form Firefox credentials manager and -silly me- I personally once forget to update my creds. Especially problematic for people who have way to small add-on icons on way-too big screens who are under time pressure like me.

I know and understand that it cannot be configured the way it was in original pfn's addon due to changes in Firefox itself, but if you could add some optional pop-up that appears every time new credentials or update are being noticed, or a message box automatically appearing, that might help careless people like me.