Thunderbird: Reduce space between TAB and Window edge

[Duke69]

I would like reduce the space between TAB bar and window edge.

I have this in my userchrome.css:

toolbox,
.tabmail-tabs
{
margin-top: -8px!important
}

But its not perfect, I'm really stuck.


How can i move the toolbar down and the right icons also on top?
Have anybody a idea to help?

[LoudNoise]

Moving to Tb General.

[Duke69]

I have found. This work for me, to reduce space between tab and titlebar:

#tabs-toolbar{
margin-top: -14px! important;
}
#messengerWindow[sizemode="maximized"] #tabs-toolbar{
margin-top: 0px! Important;
}