&widgetRendering.label; &gfxScrollbars.label; &debugWindow.label; &debugEventDebugging.label; &debugPaintFlashing.label; &debugPaintDumping.label; &debugInvalidateDumping.label; &debugEventDumping.label; &debugMotionEventDumping.label; &debugCrossingEventDumping.label; &debugMiscellaneous.label; &debugDisableXULCache.label; &debugEnableMemCache.label; &debugEnableXPCOMRefcntLog.label;