My org is experimenting with the Okta Browser Plugin. I'm a bit confused on what the Okta Tool Bar is referenced in this documentation. https://help.okta.com/en/prev/Content/Topics/Settings/Settings_Customization.htm?cshid=Settings_Customization#Settings_Customization1
That segment specifies the individual options you can configure for the Okta Plugin and it's behavior in the Browser's Toolbar. As the doc states, Enable Okta toolbar for group: Specify the group(s) that can use the toolbar to access their app outside of Okta. This allows you to restrict/allow if you users can use the Okta Plugin from the browsers toolbar to access applications. I hope this clears up the confusion.