Expand the Add Bookmark Dialog in Firefox by Default

If you are reading this article you are probably annoyed that every single time you add a bookmark in Firefox you have to click on the expand button to show the folder list before you can actually locate the folder to put the bookmark in.

There are two solutions that I've found to make Firefox expand this dialog by default, one is an extension and the other is a Stylish script, so we'll go over both solutions.