Add an option to allow user to set the default appearance to 'collapsed' or 'expanded' when opening a new tab

[pfarmer821]

When opening a new tab, the Add-on Bar is displayed in an expanded state. It would be nice to let the user specify whether it should be expanded or collapsed. (I like it collapsed!)

[SlimShayD]

It's actually caused by other extensions who modify the addon-bar contents or at least trigger the domsubtreemodified event.
I commented out the following line and the addonbar stayed collapsed.
addonbar.addEventListener("DOMSubtreeModified", this.reappear, false);

[alex-mayorga]

Can you please give more detail on where exactly to comment out this line? Thanks!

[SlimShayD]

extract [email protected]
find \chrome\content\overlay.css
and repack it as [email protected] again