1411919 - Transition from the library menu to the available sub menus is glitching

Status: VERIFIED FIXED

(Firefox :: Menus, defect, P4)

Description

[Emil Ghitta, QA [:emilghitta]]

Attachment: Transition Glitch.gif

[Affected versions]:
Firefox 57.0b11 (BuildId:20171023180840)
Firefox 58.0a1  (BuildId:20171025230440)

[Affected platforms]:
- Ubuntu 16.04 64bit
- Windows 10 64bit
- macOS 10.11.6

[Steps to reproduce]:
1. Start Firefox.
2. Open the Hamburger menu.
3. Open the Library sub menu.
4. Open the Bookmarks sub menu.
5. Open the Library menu from the toolbar.
6. Repeat steps 2-4.

[Expected result]:
The Bookmarks submenu is opened without issues.

[Actual result]:
A glitch can be observed during the transition from the library menu to the Bookmarks submenu.

[Regression range]:
This is a regression:

Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=75be6742abb94d79f3bcb731ab7fafa3d42ac4da&tochange=2cdb9790628fb4e5f898635c5f561c48ed360706

[Additional notes]:
Form more information regarding this issue please observe the attached screencast.

This is reproducible with "Downloads", "Synced Tabs" and "History" from the library menu also.

Comment 1

[Firefox Bug Husbandry Bot]

https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Move_fix-optionals

Comment 2

[:Gijs (he/him)]

Does this still happen on current Nightly? I'd expect this to have been fixed by some of the work Paolo did on panels.

Comment 3

[Emil Ghitta, QA [:emilghitta]]

This issue is no longer reproducible using Firefox 61.0a1 (BuildId:20180426220144) and Firefox 60.0b16 (BuildId:20180426170554) on Windows 10 64bit, macOS 10.13 and Ubuntu 16.04 32bit.

Mozregression pointed out that one of the patches for Bug 1428839 may have fixed this issue as well.

First good revision: 724aad27fd444a8b1a01eb96284079aae7cfbd25
Last bad revision: d0ecce89ac1aaf60e826afa9be9a92fbdb29a194

Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=d0ecce89ac1aaf60e826afa9be9a92fbdb29a194&tochange=724aad27fd444a8b1a01eb96284079aae7cfbd25