Resizing Firefox screen to specific size with bookmarklet couldn’t be easier. I’ve mentioned about how you can create your own bookmarklet earlier, and here’s something better. By adding little scripts to these bookmarklet; not only it resizes but now it can re-position. Whether you want a full screen browser, a 1024×768 positioned in the center of your screen or 800 (width) with screen fit height browser, it’s all within one click.

Behavior of each of the bookmarklets are illustrated in the table below. Test the script action by clicking on the hyperlink. To use, drag them over to your Firefox Bookmark Toolbar, or better still create a folder for it if you are going to use multiple of them.

Firefox resizing bookmarklet: With Re-positioning

Max!	1024xMax!	800xMax!
1280×800 C	1200×800 C	1024×768 C	800×600 C
1024×768 TL	1024×768 TC	1024×768 TR
800×600 TL	800×600 TC	800×600 TR