Click once in the grow box of a gecko-controlled window (viewer or apprunner), without moving the mouse. When you let go, the window shrinks by one pixel. It should stay the same size.

To clarify, the Grow box is the resize box in the lower right corner of a Mac window.

Fixed in the June 1 build.

There is still a problem with grow box handling, so I'm reopening this.

With live window resizing on, try this: 1. Click on the grow box, near the inner corner. 2. With the mouse still down, drag by a pixel to start resizing the window 3. Note that the window now 'snaps' so that the outer corner of the grow box is under the mouse. This behaviour is incorrect.

Marking as dependent of 12672 which is used to track the issue of live-resizing. If live-resizing is removed, this bug can be ignored but if we keep it, we'll have to fix the problem.

Live-Resize is now a hidden feature only activated when the Command key is down. This bug can be ignored. Marking WontFix. For future reference: fixing this bug would require moving the window handling code (SizeWindow, MoveWindow, ZoomWindow...) from nsMacMessagePump to nsMacWindow.

Based on Pierre's comments, marking as verified wont fix.