Javascript is a scripting language that is mostly used on the client side and can be really powerful. It can open a new browser window, change images as your mouse moves on them, position objects…But also resize windows!

Photo Credit: Marcelo Terraza - Edited by Nicolo’ Canali De Rossi
In fact there are some Javascripts that can be used to resize and reposition your Firefox windows with a single click over a bookmarklet.
Editors at Hongkiat, a really good up-to-date website about technology that I always follow, have written two great articles on you to create there powerful bookmarklets in a few simple steps.
Creating a bookmarklet

Hongkiat’s original article will show you how to simply create a bookmarklet in Firefox in three easy steps.
Resizing and repositioning bookmarklets
Hongkiat’s editors have also created a series of useful bookmarklets that you can simply drag&drop to your Firefox sidebar, and that will automatically resize and reposition your window with one click.

Here are some examples:
And here is the full article with all the bookmarklets you can add to your sidebar.


