1610784 - Dropdown menus showing on wrong monitor

Status: RESOLVED DUPLICATE of bug 1592416

(Core :: Widget: Cocoa, defect, P2)

Description

[Karl W.]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:72.0) Gecko/20100101 Firefox/72.0

Steps to reproduce:

After updating to Mac OS Catalina, the following issue appeared when opening almost any kind of menu:

• Opening the downloads menu
• Textbox suggestions, dropdown menu in password fields
• Folders in the bookmarks toolbar
• Switching videos to full screen
• Right-click context menu

This does NOT happen for the bookmarks menu and the main menu to the right.

Actual results:

These menus always open on the first workspace on the primary monitor (integrated Macbook display in my case) and are not properly scaled (too small).

When switching to a different workspace on the primary monitor, menus don't appear at all.

After restarting the browser, things sometimes work as expected for a couple of times, then stop working without any changes, e.g. just opening and closing the download menu breaks it.

Expected results:

Menus should open on the same monitor the Firefox window is on.

Comment 2

[Francesco Lodolo [:flod]]

Sorry, realized this is about dropdown, not context menus. Possibly the same root cause though.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The priority flag is not set for this bug.
:spohl, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 4

[Stephen A Pohl [:spohl]]

:haik, can this be closed as a duplicate of bug 1592416?

Comment 5

[Haik Aftandilian [:haik]]

(In reply to Stephen A Pohl [:spohl] from comment #4)

:haik, can this be closed as a duplicate of bug 1592416?

I think this is probably a duplicate of bug which we are close to having a fix for.

The report mentions different workspaces and multiple monitors which is a problem case being addressed on bug 1592416.

As a workaround, try right-clicking on the Firefox dock icon, choosing Options, and setting "Assign To" to None. I'll attach a screenshot. So far, I have only see this problem when Firefox has been assigned to a particular workspace.

Comment 6

[Haik Aftandilian [:haik]]

Attachment: Possible workaround: Don't assign Firefox to a space or desktop, set to None instead