Window Resizer – Get this Extension for 🦊 Firefox (ja)Resize your browser to various standard resolution sizes. The Browser Window Resizer is useful for testing different screen sizes. It accurately resizes your browser so you can test to see what a web page looks like in all of the standard resolution sizes. Supports the 640x480, 800x600, 1024x768, 1280x800, 1280x1024, 1600x1200 resolutions. Resize the current page via the Context menu, Tool menu or
