1418304 - Ugly shadow around the top of sliding menus

Status: RESOLVED FIXED

(Core :: Widget: Gtk, defect, P5)

Description

[Michal Stanke (Mozilla.cz) [:mstanke][:MikkCZ]]

Attachment: screenshot.png

STR:
1. Go to a light page, i.e. mozilla.org.
2. Click the page actions menu.
3. Open the "Send tab to" sub-menu.

There is an ugly shadow at the top of the menu popup.

Here is the regression window on Linux https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=3300c15011d3a6661aaf8eee254b693d7e99f392&tochange=5b700335fc30f2faf8aa12c9e38bc05e6c1e5e22.

Comment 1

[Jared Wein [:jaws] (please needinfo? me)]

This looks very similar to bug 1394575.

Hey Dao, have you seen this? sfoster said that you had been doing some work with popups and Linux and might have an idea.

Comment 2

[Michal Stanke (Mozilla.cz) [:mstanke][:MikkCZ]]

Just a note the page actions menus is not the only place where I see it, only the most frequent one, so I have used it when searching for mozregression window. It happens also in the Library, Page info doorhanger and the main Firefox menu.

Comment 3

[Dão Gottwald [:dao]]

(In reply to Jared Wein [:jaws] (please needinfo? me) from comment #1)
> Hey Dao, have you seen this?

I can reproduce this on Ubuntu 17.10. Looks like a Gecko / Widget: Gtk bug to me.

Comment 4

[Dão Gottwald [:dao]]

This is unlikely a xul widget bug.

Comment 5

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1552613