Issue: This error occurs when you try to use a tool to place content on the clipboard. By default, browsers block access to the clipboard from web pages.
You may only use this tool in Firefox if the clipboard has been enabled.
Solution:
To enable clipboard use in Firefox: (setting only needs to be changed once)
Open a new tab and enter the following in the address bar:
about:config
This will display your Firefox configuration in list form. In the search box at the top of the list, type:
signed.applets.codebase_principal_support
The value for this setting is False by default. Double-click on “False” to change the setting to “True”.
Return to Store Commander (no need to restart Firefox) and click on the desired tool: a final pop-up warning is displayed. Click Ok to confirm the setting for your website and you will be able to use all the clipboard-related functions.