Firefox ESR doesn't appear in Software app

I understand that Purebrowser has transitioned to Firefox ESR. I see Firefox ESR in my Applications menu and the Show Applications tile but it doesn’t appear in the Software application, so I don’t know how to uninstall it, except to use apt.
Is this a bug?

Hi I was unable to reproduce this issue. On my machine it shows. Firefox-ESR should appear as just Firefox in GNOME Software, but in the description it is identified as Firefox-esr.

Can you do: sudo apt update from the terminal and see the problem still persists


This is the output of my apt update:

Hit:1 amber InRelease
Hit:2 amber InRelease
Hit:3 amber-security InRelease
Hit:4 amber-updates InRelease
Ign:5 stable InRelease
Hit:6 stable Release
Reading package lists… Done
Building dependency tree
Reading state information… Done
All packages are up to date.

I still don’t see firefox in the Software app, but I failed to note that I have mozilla-firefox installed separately. It is shown in the Applications menu and Show Applications tiles as “Mozilla Firefox” along with “Firefox ESR”. I suspect there is some conflict between these two installs that is messing up Software. Note that I also have a repository for Vivaldi and it looks fine in all the apps.

Here is some further output from apt:
kwe@kwe-librem:~$ apt list firefox
Listing… Done
kwe@kwe-librem:~$ apt list mozilla firefox
Listing… Done
kwe@kwe-librem:~$ apt list firefox-esr
Listing… Done
firefox-esr/amber-security,now 68.7.0esr-1~deb10u1 amd64 [installed,automatic]
kwe@kwe-librem:~$ apt list purebrowser
Listing… Done
purebrowser/amber-updates,now 68.4 amd64 [installed,auto-removable]
N: There is 1 additional version. Please use the ‘-a’ switch to see it

It appears I have some combination of purebrowser, firefox-esr and mozilla-firefox on my librem.

Please don’t forget (like I usually do), that you can wash dishes by hand in the sink (Terminal):

$ sudo apt autoremove --purge

$ sudo apt-get clean
$ sudo apt autoclean

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Yeah, I think this ought to be considered a bug if it is not showing up in Software.

Although, if you installed via flatpak, sometimes Software doesn’t see those (in my experience.)

I think I downloaded the .tar.bz2 deb file from Mozilla, but for some reason I didn’t save the installer in my Downloads folder as is my custom.
Do you know if there is a Mozilla-supported PureOS compatible repository I could add to my sources list? That might help PureOS keep mozilla-firefox stable and firefox-esr separate. I’ve searched for a real repository and find only archives of stand-alone installers.
Or is there a good reason to just stay with firefox-esr, now that it is part of PureOS?

As Flatpak is installed by default on PureOS and as described here, this one should work fine:
$ flatpak install flathub org.mozilla.firefox
$ flatpak run org.mozilla.firefox

Current version is 75.0 but if needed to be removed:
$ flatpak uninstall org.mozilla.firefox


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$ flatpak install flathub org.mozilla.firefox

Command ‘flatpak’ not found

My info was based on:, yet solution would be:
$ sudo apt install flatpak

On the Mozilla site there is Firefox up to v75 and Firefox Extended Support Release v68.7 at this time. This is the current version on my 13. I am curious how and when an update is released for esr. I have to investigate esr further.

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Firefox Extended Support Release (ESR) current version is 68.7.0, nothing to complain there as it “doesn’t come with the latest features but it has the latest security and stability fixes.” Direct link to latest releases is here: (without Linux installer). By installing Firefox 75.0 through Flatpak you are getting less secure version of browser, that’s all. As well and if someone like to surf on the edge, he or she might try Unofficial Firefox flatpak repository, with Wayland support included.

As of today there is upgrade available to Firefox 68.8.0esr.

As of January 2023:

have the same issue firefox-esr doesnt show in pureos store on L5, i installed it using the terminal, it does not show in “Explore” or “Installed” which is odd since its installed -using it to write this post:

apt info firefox-esr*.deb


Am i using the right one?

Yes. Please check if [installed,automatic] with apt list firefox-esr -a or apt info firefox-esr.

yes they show up in the terminal -a and the other one, however not in the Gnome Store, still kinda odd.

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