I do not like the default Firefox toolbar (since whatever version), which looks like this:
I prefer to have the old look-an-feel of Firefox, with the
new tab buttons at the traditional places. The solution is easy, but it was not intuitive, at least not to me:
Right click somewhere at the toolbar, select
customize. The toolbar will change, so drag and drop the icons as follows:
This is it. I also like to have the
download button between the address and search bars.