Tab name is shown after custom window name

[gloryVine]

Hello,

I was hoping to use this extension as a way to get a unique name for a Firefox window containing possibly multiple tabs. But it seems like I can only add a tag before the name. For example, by doing 'Set the window title: Test', I get a window named '[Test] Window Titler'. If I switch to another tab, this will change to e.g. '[Test] Google'.

This is not helpful for me as I need a unique title I can access for use with other applications, not merely a tag. Since the add-on is named Window Titler, I might be missing something. Is there a setting I need to change?