Rated 3 out of 5 stars

Move and/or have the option to hide the button on the toolbar. It is very much out of place right now.

I recommend the status bar icon theme, but since the menu only has one item, not even that is required.

This review is for a previous version of the add-on (1.0.1). 

If you mean SeaMonkey toolbar button, you can hide it on preferences window:

1. Open Preferences window;
2. Click on Navigator panel;
3. Uncheck Script Manager on Navigation Toolbar groupbox.