Firesizer is an extension for the firefox web browser. It allows you to resize the browser window to specific dimensions.
It provides a menu and status bar to resize the window dimensions to a specific size. Unlike other similar extensions, this one sets the size of the *entire window*, not just the HTML area.
Heavily inspired by "Yet Another Window Resizer" by Galoca
Here's a screen-shot of what it looks like in firefox when loaded:
Firesizer is licensed under the same license as Firefox itself -- Using a triple license of MPL 1.1/GPL 2.0 or later/LGPL 2.1 or later.
To download and install this extension, please see the Firesizer extension page at addons.mozilla.org.