Resizer 0.4

Resizer adds a single button to your Safari toolbar. The extension has 10 user configurable window settings (that can be named and enabled/disabled) and clicking the toolbar button will cycle through them in order.

Alternatively the toolbar button can be used to show/hide the Resizer Bar giving easy access to your window settings. You can also select any of your enabled settings directly from the contextual menu or via keyboard shortcuts using the option key (⌥1 through ⌥0).
Why? Using a bookmarklet to resize a Safari browser window with more than one tab doesn't seem to work very well but a Safari extension can solve this problem. If you're like me then you've probably installed a bunch of Safari extensions and now have several new toolbar buttons. I wanted to keep the clutter to a minimum with just a single toolbar button that can switch between a number of window sizes.