1083899 - Interface cannot be customized: icons/items drag and drop doesn't work

Status: RESOLVED INVALID

(Firefox :: Toolbars and Customization, defect)

Description

[Artem S. Tashkinov]

Attachment: Video demonstration (mkv file with H.264 stream)

User Agent: Mozilla/5.0 (X11; Linux i686; rv:33.0) Gecko/20100101 Firefox/33.0
Build ID: 20141011015303

Steps to reproduce:

Enter Customize and try to rearrange the interface by dragging UI elements (the address bar, search bar, various icons)


Actual results:

Nothing - when I try to move UI elements they don't fall into their places.


Expected results:

UI could be customized

Comment 1

[Artem S. Tashkinov]

This has been happening since Firefox 29.

Sometimes in rare cases (depending on a phase of the moon) Firefox allows to customize its UI.

OS: CentOS 6.5
gtk2-2.24.7-3.fc15.i686
No fancy window managers: just standard KWin without compositing.

Comment 2

[Artem S. Tashkinov]

This happens with a completely new profile as well!

(And no, "the add-ons bar (restored)" is not guilty - this happens with *zero* add-ons installed).

Comment 3

[:Gijs (he/him)]

Are there any errors in the Browser Console? Does this work on Nightly? (http://nightly.mozilla.org)

If this has been broken since 29 and never worked, not even on a clean profile, why did you not report it before now?

Comment 4

[Artem S. Tashkinov]

Why didn't I report it earlier? I tried Australis when it was still in beta, I didn't like it at all, so I used Firefox 24 ESR for as long as I could. Now that 24ESR is no longer supported, I have no choice but to upgrade to Firefox 33.

OK, through trials and errors I've actually found out that https://addons.mozilla.org/en-US/firefox/addon/hidemenubar/ addon breaks interface customization. When I disable it, everything starts working right away. This extension is super handy on Linux because it allows to see the menu bar just by moving mouse to the top of the screen - without this extension you have to press "Alt" to see the menu.

So, I guess this bug is INVALID. Feel free to close this bug report.

I'm sorry for the noise in this bugzilla.

Strangely https://addons.mozilla.org lists this extension as compatible with Firefox 33 for Linux.

P.S.

This is what is logged in console when I click "Restore Defaults" in customization:

*************************
A coding exception was thrown and uncaught in a Task.

Full message: TypeError: aTarget is null
Full stack: CustomizeMode.prototype._addDragHandlers@resource://app/modules/CustomizeMode.jsm:998:5
CustomizeMode.prototype._wrapToolbarItems/<@resource://app/modules/CustomizeMode.jsm:986:9
TaskImpl_run@resource://gre/modules/Task.jsm:330:41
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:866:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:745:7
*************************

No messages are logged when I try to drag and drop different UI items.