Is there a way to resize a window to specific sizes (eg.800x600, 1024x768..)?

I need a way to resize any window (not just Firefox!) to specific sizes.

I need to check what the application I'm writing looks like at these resolutions - how many columns are visible in grids, that sort of thing.

I know I could just change my resolution, but that's a hassle, especially for 800x600 - desktop icons get smooshed together and stuff.

Answer

Check out Sizer ...

Sizer is a tiny freeware utility that gives you an easy and fast way to resize any window to an exact size. It could be a very useful tool for webmasters and web designers.