Add extra empty toolbars if you want to see more of the persona.
You can create new toolbars in View > Toolbars > Customize
You have to place something on a toolbar (drag a Space on it) before closing the Customize window as empty toolbars are automatically removed.
See http://kb.mozillazine.org/Toolbar_customization

You can also create one toolbar (name: PersonaFiller) via "View > Toolbars > Customize" and put a single Space item on it and use code in userChrome.css to set a min-height for that toolbar.
If you do not want to see that toolbar to get more website space then you only need to remove one check-mark via the right-click context menu on that toolbar.

Add code to userChrome.css below the @namespace line.
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */
See http://kb.mozillazine.org/Editing_configuration#How_to_edit_configuration_files

#__customToolbar_PersonaFiller {min-height:100px !important;}

My home page background has a design on it. How can I change it back to its original plain background.

You can uninstall your current Persona and revert to the Default theme (Tools > Add-ons > Themes).

See

• Personas
• Use themes to change the look of Firefox
• http://kb.mozillazine.org/Themes (Lightweight theme)

Thanks.............all resolved.

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