disable on certain pages

rhaps there's a way to disseems a bit confusing to display window size as well as viewport size. I'm using this to check how the pages I'm developing react to media queries, in which window size doesn't seem relevant... peable this feature.

Mac Chrome: Window Cuts Off the Top Portion (Beta Resize)

Resize by one dimension only

(Google Docs) Popup keeps appearing

Is there an option to hide the selection list once I've made a selection?

Why did you change the basing point which is used when resizing the window

Browser Resizing Tool Tip.

Neutral colors?

Feature Request: Option to only show tooltip if developer tools are open