On my high resolution screen for some applications that don't scale to the global scale factor I use a special start-up script, that changes the resolution and scale factor down to Full-HD and scale factor 1 but then the extension that scales everything twice in firefox is making everything really big. I have to disable the extension in the add-on menu by hand.
Is there a way to disable an extension inside a running instance of Firefox from the console?
Or can I alter my add-on Zoom Menu Elements so it stores the zoom state in the file system where I can alter it via bash?
related topic: Fix scaling of java-based applications for a high DPI screen