I demand that Kousik Nandy may or may not have written...
> I have in my ~/.mozilla/default/zawj8bz7.slt/chrome/userChrome.css the
> following lines to turn off the toolbar labels ("Get Msgs" "Compose"
> for example):
>
>
> /* Turn off toolbar labels */
> .button-toolbar-2 > .button-internal-box > .button-text-container
> {
> display:none;
> }
.button-toolbar-2 is obsolete. Try (Modern)
.toolbarbutton-1 > .toolbarbutton-menubutton-stack >
.toolbarbutton-menubutton-button > .toolbarbutton-box > .toolbarbutton-text,
.toolbarbutton-1 > .toolbarbutton-box > .toolbarbutton-text {
display: none;
}