How to delete a plug in from InDesign

there is no uninstaller. There is no script in the scripts panel. Yet the message that it is not plugged in appears whenever the program is opened.

You shouldn't need to subscribe to Monotype again, and I wouldn't go as far as uninstalling InDesign just yet.

As you're on a Mac, you can try removing the plug-in manually.

1. Quit InDesign completely.

2. In Finder, open your Applications folder.

3. Open the folder for your version of Adobe InDesign (e.g. Adobe InDesign 2026).

4. Open the Plug-Ins folder.

5. Look for anything relating to Monotype, Extensis, Connect Fonts or Suitcase Fusion.

If you find the offending plug-in, move it out of that folder and onto your Desktop temporarily. Don't delete it just yet.

Restart InDesign and see whether the message disappears.

If it does, you've identified the problem and can remove the plug-in permanently.

If you can't find anything there, ​@rob day suggestion about checking startup scripts is worth investigating too.

Depending on the version installed, there may also be an extension left behind in your macOS Library folder.

I wouldn't reinstall InDesign or pay for another subscription until you've checked those locations.

Thanks. It seems a bit unfair to sign up for the Monotype app, pay for it, and immediately delete it. I guess I’ll just live with the annoying message.

Not sure if I included this screen shot.

I am on a MAC. Thanks for that link, but I do not see “Settings” anywhere; it is presumably in the Monotype program, which I deleted after cancelling my suscription. Ttis apparently did not delete the plug in.

Is this a 3rd party plugin? If so then check if they have provided any uninstaller for their plugin. Generally plugin files are places inside the “Plug-Ins” folder present inside the InDesign installation directory, removing the file removes the plugin. However, check the uninstaller first because there could be other elements to the installation other than the plugin