Closed Bug 1513572 Opened 5 years ago Closed 5 years ago

Firefox crashes when you merge titlebar and tab list


(Core :: Widget: Gtk, defect)

64 Branch
Not set



Tracking Status
firefox-esr60 --- unaffected
firefox64 --- wontfix
firefox65 --- wontfix
firefox66 - wontfix


(Reporter: greatBigDot, Assigned: stransky)


(Blocks 1 open bug, )


(Keywords: crash, regression, topcrash-linux)

Crash Data

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/64.0

Steps to reproduce:

On Arch Linux with the XFCE4 window manager, simply go to the customization menu (Menu > Customize) and uncheck the "Title Bar" option.

Actual results:

Firefox immediately crashes. When reopened, the changes to the option in question are not saved.

Expected results:

Firefox should merge the tab bar and the titlebar, exactly how it did in v-63. Preferably, it would do this without immediately crashing.
Blocks: gtktitlebar
Keywords: crash
Crash Signature:
Crash Signature: → [@ ]
Component: Untriaged → Widget: Gtk
Keywords: regression
OS: Unspecified → Linux
Product: Firefox → Core
Hardware: Unspecified → x86_64
greatBigDot, can you share any Submitted Crash Report IDs listed in your about:crashes page?
I experienced the same issue and found that I could work around it by downgrading gtk3 3.24.1+155+g4c8fcd6a6f-1 to gtk3 3.24.1+8+g220f77d8c1-1.  I hope that's of some use in trouble-shooting this.
Downgrading gtk3 worked for me too. Thanks @martinking!

Note: I said in the original post that the issue appeared after upgrading to v-64. While true, after downgrading back to v-63, the problem remained for me (even though I had no problems on v-63.0.3 yesterday). Apparently the Firefox update was completely coincidental... I'm not sure. Anyways, downgrading gtk3 makes it work on the current Firefox.
Ever confirmed: true
Martin is is a bug that falls into your team bucket?
Flags: needinfo?(stransky)
Can confirm, after upgrading firefox it could not start even in safe mode. Arch Linux x86_64, XFCE. I had no issues before, had to refresh firefox to be able to launch it and as soon as I tried to remove the title bar it crashed every time:

So upon reading your comments the real culprit is gtk3 upgrade and firefox has nothing to do with it?
This does appear to have been an issue with gtk3 and looks to have been fixed with the upgrade of gtk-update-icon-cache 3.24.1+155+g4c8fcd6a6f-1 -> 3.24.2+1+g2905fc861a-1 on Arch.

I'm not a developer so no team bucket.  I signed up just to add the gtk3 information.  Please let me know if it's not appropriate for me to be posting here and thanks for your help.
[Tracking Requested - why for this release]: This is the top crash on Linux for the 12-14 Nightly, with 43% of all Linux crashes.
(In reply to Pascal Chevrel:pascalc from comment #5)
> Martin is is a bug that falls into your team bucket?

Yes I'll look at it.
Assignee: nobody → stransky
Can anyone reproduce that on something else than Arch Linux? I tried XFCE on Fedora, both accelerated/non-accelerated windows without any luck. I have the gtk-update-icon-cache-3.24.1 package installed.

Link to Arch report:

so looks like Arch specific and already fixed there.
Flags: needinfo?(stransky)
Closing based on the Arch Linux report.
Closed: 5 years ago
Resolution: --- → WORKSFORME
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