I have this white border in Firefox, up top. How do I get rid of it? It's been there for more than a yr now.

Question:blank white border, nothing on it, does nothing

Answers:
The 'white border' couldn't be part of Firefox. Are you sure its not a part of a website you've been viewing? A problem in the code of a style sheet on a page can cause the white border display problem in firefox.

The 'white border' could be due to a faulty theme/extension. Try to figure out what extension might have caused the problem. Disable them one by one and restart firefox to isolate the problematic add-on and check(Tools -> Add -ons-> extension -> select extension and click disable). Also update your extensions...since developers do fix bugs with each update.

Also, start firefox in safe mode. Start > Programs > mozilla firefox > mozilla firefox (safe mode) . Here tick disable addons, reset toolbars and controls and click make changes and restart. See if that solves your problem.

As far as the toolbars in firefox are concerned, you can customize them and show what you want to show. In firefox , click on View-> toolbar. Here tick or untick the toolbars you want/don't want. For example if you've got nothing on the bookmarks toolbar, then just hide it by unticking the bookmarks toolbar.

Besides you can customize the buttons on the toolbars by right clicking on the toolbars and selecting 'customize' . Now you can drag the objects/buttons which you don't require from the toolbars to this customize toolbar window and click on 'done' when finished. Also you can add additional buttons from this window to your toolbars by dragging them to the toolbar and click 'done' when you're finished.

Also, you can toggle between the 'styles' from View -> page style.

If at anytime you want the default toolbar setup, you can pull up this window (right click on toolbar and select customize) and select 'restore default set' and hit Done.

If you're asking to remove the borders which separate the toolbars, like for instance the menu bar from the navigation bar, you have to enter few lines of code in the file userChrome.css which you will have to create in the chrome subfolder of the profile folder of firefox.

In that file enter this code:

#toolbar-menubar {
min-height: 12px !important;
padding: 0px !important;
margin: 0px !important;
border: none !important;
}
#nav-bar {
border: none !important;
padding: 0px !important;
}
#PersonalToolbar {
border: none !important;
}
#navigator-toolbox {
border-bottom-width: 0px !important;

That's all