Closed Bug 1095821 Opened 10 years ago Closed 8 years ago

When resizing a Firefox window bigger than the screen, app draws garbage

Categories

(Core :: Graphics, defect)

33 Branch
x86
macOS
defect
Not set
normal

Tracking

()

RESOLVED WORKSFORME

People

(Reporter: zillaster, Unassigned)

Details

Attachments

(2 files)

Attached image Firefox Drawing Bug.jpg
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141105223254 Steps to reproduce: 1. Create a new window (Cmd-n) 2. Zoom the window to full screen (Window menu > Zoom) 3. Drag the window offscreen to the left. 4. Resize the window by clicking and dragging the right edge. Actual results: The expanded area of the window shown after the window is resized draws black. The title bar of the window draws garbage; title bar buttons are drawn multiple times and with lines through them. See attached screenshot. Expected results: Window just gets bigger and draws all window controls correctly.
If I restart the app in Safe Mode, the drawing bug doesn't occur. If I disable all plugins and extensions, a slightly different drawing bug happens. Instead of black pixels being drawn, I see multiple instances of the Zoom button in the window title bar. See attachment.
My apologies, I don't have the attachment mentioned in my previous comment and I can't get that particular variation of the bug to happen. I see black space and badly drawn window title bar.
The safemode also disables the graphic hardware acceleration. Disable the hwa under options/advanced/general/[]Use hardware acceleration... (Firefox restart could be required)
Component: Untriaged → Graphics
Product: Firefox → Core
When I turn off Hardware Acceleration, I no longer see the garbage drawing. However, I now see the previously mentioned bug where multiple copies of the Zoom icon are drawn. See attachment.
So, any ideas what this might be?
Status: UNCONFIRMED → RESOLVED
Closed: 8 years ago
Resolution: --- → WORKSFORME
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