371453 - With multiple displays with different resolutions, windows on second display open truncated

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Saul Tannenbaum]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2

On Mac OS 10.4.8, Firefox 2.0.0.2 (and earlier), if one moves a window from a main display to a secondary display with smaller resolution, subsequent new windows open truncated, both at the top and bottom. This leaves the window without a place to be dragged or resized. 

When one sets the displays to have equal resolutions, this problem does not occur. 

Reproducible: Always

Steps to Reproduce:
1.Set up a Mac with two displays. In my case, an iMac with a 1920x1200, and and Cinema display at 1680x1250
2. Open Firefox, drag a window to the secondary display
3. File -> New Window

Actual Results:  
A second window opened, as expected, on the secondary display, with its top and bottom truncated. 

Expected Results:  
A second window should open, sized correctly for the screen.

Opening the Mac display preference and resetting resolutions redraws the window correctly.

This behavior seems limited to Firefox. Safari opened the second window correctly sized under similar circumstances.

Comment 1

[Adam Guthrie]

This bug is very similar to bug 323469 and bug 354187.

Comment 2

[Tyler Downer [He/Him]]

This bug was originally reported on Firefox 2.x or older, which is no longer supported and will not be receiving any more updates. I strongly suggest that you update to Firefox 3.6.8 or later, update your plugins (flash, adobe, etc.), and retest in a new profile. If you still see the issue with the updated Firefox, please post here. Otherwise, please close as RESOLVED > WORKSFORME
http://www.mozilla.com
http://support.mozilla.com/kb/Managing+profiles
http://support.mozilla.com/kb/Safe+mode

Comment 3

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.10 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.

Comment 4

[amirmasood33]

System

• MacBook Pro (Retina, 13-inch, Early 2015) @1440x900
• 2.7 GHz Dual-Core Intel Core i5
• 8 GB 1867 MHz DDR3
• Intel Iris Graphics 6100 1536 MB
• Two Samsung C24F390 24" monitors @1920x1080

Firefox

• Version: 70.0.1
• Build ID: 20191030021342
• Update Channel: release
• OS: Darwin 19.0.0
• Multiprocess Windows: 3/3 Enabled by default

Reproduce

This problem primarily happens when I'm opening another window like Sign In With Google or LinkedIn or GitHub etc. it will open on my builtin display with a shrunk window. However, it will be restored to standard size after moving the window to another screen (and will be correct size after moving back to builtin display)

When initialized on builtin display
After moving to another screen