1422390 - Unable to select a "Tab" to activate it. Manjaro Linux distro

Status: NEW

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

Description

[jay.xac]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171121103731

Steps to reproduce:

Open Firefox 57 (after getting the latest update). 
Browse to any website
Open a new Tab
Try to go back to the first tab



Actual results:

Unable to select the tab. It seems to assume I want to move the browser around and gives me the Move icon instead. 


Expected results:

Tab should have selected. Not the move icon

Comment 2

[Karl Tomlinson (:karlt)]

(In reply to Dão Gottwald [::dao] from bug 1422065 comment #4)
> This sounds a bit like bug 1406751 / bug 1419092...

Yes, I'd guess this is the same issue as bug 1419092.

It is similar to bug 1406751, but that is about clicking in the areas of
chrome intended to move the window.

> So Widget: Gtk was probably the right bet?

A beginWindowMove() in response to a click on a tab is not expected.

What do you think would be requesting the window move?

Comment 3

[Karl Tomlinson (:karlt)]

Reporter, do you have any Firefox add-ons or themes installed?
If so, can you try disabling them, please?

Comment 4

[jay.xac]

I do not have any extensions installed. 
All 3 themes are already disabled. Dark, Default and Light
Only plugin installed is OpenH264. Disabling has no effect. 

Switching to private mode does not solve the issue (in case you were wondering)

Please let me know if you need further info or if you'd like me to test patches etc.

Comment 5

[jay.xac]

Quick update. This issue cannot be reproduced in safe mode. It does however occur even when i do Refresh.

Comment 6

[jay.xac]

On Enabling Dark by Mozilla theme, the issue seems to have gone away. 

to be clear, the Dark by Mozilla theme was disabled and I had to enable it to get the tabs to work.

Comment 7

[Dão Gottwald [:dao]]

(In reply to Karl Tomlinson (back Dec 20 :karlt) from comment #2)
> > So Widget: Gtk was probably the right bet?
> 
> A beginWindowMove() in response to a click on a tab is not expected.
> 
> What do you think would be requesting the window move?

https://searchfox.org/mozilla-central/rev/c8e791091973825680bbba807fc1c4f5bda0f5a1/toolkit/modules/WindowDraggingUtils.jsm#68