Did you try '''Ctrl'''+'''0''' (zero) to reset the zoom. You did that with by holding the control key and scrolling on the right edit of the pad, which is equivalent to Ctrl+scrollwheel on the mouse. Ctrl+0 to restore zoom to normal (Ctrl+- zooms out, Ctrl++ zooms in ) The problem with the Zoom toolbar buttons (+ and -) builtin to Firefox 4 is that there is no way to zoom directly to normal (100%) nor even tell what zoom level you are at. For more control over zooming things see these [http://dmcritchie.mvps.org/firefox/firefox.htm#zoom zoom links] To set the zoom permanently on a per site basis, try the [https://addons.mozilla.org/firefox/addon/nosquint/ NoSquint] extension, which optionally remembers on a per site basis.