Closed Bug 1195720 Opened 4 years ago Closed 4 years ago

window resizing in OS X 10.11 (15A243d) when resizing window bottom to top


(Core :: Widget: Cocoa, defect)

40 Branch
Not set





(Reporter: sajaki9, Unassigned)


(Blocks 1 open bug)



(1 file)

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:40.0) Gecko/20100101 Firefox/40.0
Build ID: 20150807085045

Steps to reproduce:

window resizing in OS X 10.11 (15A243d) when resizing window bottom to top . 

Actual results:

left top window corner buttons repeat themselves over window width; 
top corner and toolbar becomes black.
firefox crashes

Expected results:

window should resize normally
Component: Untriaged → General
Attached image Screen Shot
Component: General → Widget: Cocoa
Product: Firefox → Core
Severity: normal → critical
Component: Widget: Cocoa → General
OS: Unspecified → Mac OS X
Priority: -- → P1
Product: Core → Firefox
Hardware: Unspecified → x86_64
I am fairly sure this belongs back in Widget: Cocoa.
Component: General → Widget: Cocoa
Product: Firefox → Core
You're right, jryans.

This is definitely on my radar.  I just haven't gotten to it yet.

Note that we can't assign priority here until we know how easily reproducible this is.
Priority: P1 → --
Severity: critical → normal
Testing with Firefox 40.0.2 (the current release) on El Capitan Beta 6 (build 15A244d) I don't see this bug.  I see no glitches resizing the browser window in any of the possible ways (using any of the edges or the grab region in the lower right).

El Capitan Beta 7 is now out.  Try updating to it.

If that doesn't fix the problem, try testing in Safe Mode (
Also test with other apps, like Safari and Chrome, to see if those have the same problems.
At least provisionally, I'm marking this WORKSFORME.
Closed: 4 years ago
Resolution: --- → WORKSFORME
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