Rated 5 out of 5 stars

It actually works, thank you. One of my pet hates is clicking tiny page no. or next arrow in the forums.

If anyone is interested, you can use following script in FireGestures to send space key:

var evt = window.content.document.createEvent("KeyEvents");
evt.initKeyEvent(
"keypress",
true,
true,
null,
false, // holds Ctrl key
false, // holds Alt key
false, // holds Shift key
false, // holds Meta key
false, // presses a special key
" ".charCodeAt(0) // presses a normal key, e.g. "A".charCodeAt(0),
);
window.content.document.documentElement.dispatchEvent(evt);

This review is for a previous version of the add-on (0.22).