Doesn't seem to work correctly anymore with Chrome 39.0.2171.95. It seems to double the selected size.

How to turn off hotkeys?

Don't include scrollbar in viewport setting

I can't make the numeric hotkeys to work. Is it a known bug?

Can I show the current window-size tooltip without resizing the window?

Allow cycling through presets in reverse

How do you change the window size back to the original sizing you started out with, i.e. before you used this extension?

Window Resizer no longer works correctly (with latest version)

The iPhone resize is still much bigger than the actual phone

Viewport and window sizes in the tooltip are not accurate when viewing a site at increased magnification