firefox opens nautilus inside XCFE desktop

[Felix]

Firefox opens nautilus inside XCFE desktop whereas XCFE file browser thunar ought to be opened. Since I didn't change the settings the file browser should adapt to the desktop environment.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: firefox 55.0.2+build1-0ubuntu0.17.04.1
ProcVersionSignature: Ubuntu 4.10.0-35.39-generic 4.10.17
Uname: Linux 4.10.0-35-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: felix 1568 F.... pulseaudio
BuildID: 20170816204344
Channel: Unavailable
CurrentDesktop: XFCE
Date: Sun Sep 24 22:23:52 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2017-06-14 (101 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
 default via 192.168.1.1 dev wlp4s0 proto static metric 600
 169.254.0.0/16 dev wlp4s0 scope link metric 1000
 192.168.1.0/24 dev wlp4s0 proto kernel scope link src 192.168.1.2 metric 600
Locales: extensions.sqlite corrupt or missing
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=55.0.2/20170816204344 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/12/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V1.12
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire V5-571G
dmi.board.vendor: Acer
dmi.board.version: V1.12
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.12
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.12:bd06/12/2012:svnAcer:pnAspireV5-571G:pvrV1.12:rvnAcer:rnAspireV5-571G:rvrV1.12:cvnAcer:ct9:cvrV1.12:
dmi.product.name: Aspire V5-571G
dmi.product.version: V1.12
dmi.sys.vendor: Acer

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Frederic (meunierf)]

I reported the bug on Bugzilla this morning before find out it was posted here.

You can see 2 short clips of what are the effects in the post :

https://bugzilla.mozilla.org/show_bug.cgi?id=1423568

[Frederic (meunierf)]

Short clip showing Nautilus loading from Firefox, while also replacing my wallpaper by the default Unity paper.

[Frederic (meunierf)]

In attachment a screenshot of the line to edit in /usr/share/applications/defaults.list in order to have Firefox opening Thunar instead of Nautilus when using XFCE.

I suggest Firefox to add an option to give users the choice of preferred file manager matching desktop environment.

[dino99 (9d9)]

That version is now dead
http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml

[Karl-Philipp Richter (krichter722)]

This is still and issue in Ubuntu 17.10. Firefox opens all kinds of file browsers which are not the ones preferred by the desktop. In addition to the above, inside gnome-shell it opens dolphin.

Can we set the referenced upstream bug to be tracked and mark it confirmed again?