A broken pearl (generated by Midjourney). Credit: libre-software.net. License: CC BY-SA 4.0
Ubuntu: resolve the “perl: warning: Setting locale failed” problem
Last updated on October 11, 2022
Are you running Ubuntu 18.04, 20.04 or 22.04 desktop or server edition, and getting warning or errors when installing software via apt-get or aptitude?
Here is a typical error message:
perl: warning: Setting locale failed.perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_TIME = "es_ES.UTF-8", LC_MONETARY = "de_DE.UTF-8", LC_ADDRESS = "de_DE.UTF-8", LC_TELEPHONE = "de_DE.UTF-8", LC_NAME = "de_DE.UTF-8", LC_MEASUREMENT = "de_DE.UTF-8", LC_IDENTIFICATION = "de_DE.UTF-8", LC_NUMERIC = "de_DE.UTF-8", LC_PAPER = "de_DE.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system.perl: warning: Falling back to a fallback locale ("en_US.UTF-8").locale: Cannot set LC_ALL to default locale: No such file or directory
Sometimes, trying to solve the problem using the update-locale or locale commands does not work and generates following error messages:
~ # sudo update-locale
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_PAPER = "de_DE.UTF-8",
LC_ADDRESS = "de_DE.UTF-8",
LC_MONETARY = "de_DE.UTF-8",
LC_NUMERIC = "de_DE.UTF-8",
LC_TELEPHONE = "en_US.UTF-8",
LC_IDENTIFICATION = "en_US.UTF-8",
LC_MEASUREMENT = "en_US.UTF-8",
LC_TIME = "es_ES.UTF-8",
LC_NAME = "de_DE.UTF-8",
LANG = (unset),
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_US.UTF-8").
or
~ # locale
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=de_DE.UTF-8
LC_TIME=es_ES.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=de_DE.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=de_DE.UTF-8
LC_NAME=de_DE.UTF-8
LC_ADDRESS=de_DE.UTF-8
LC_TELEPHONE=de_DE.UTF-8
LC_MEASUREMENT=de_DE.UTF-8
LC_IDENTIFICATION=de_DE.UTF-8
LC_ALL=
Solution to the perl locale problem
The solution is to export the missing locales to ~/.bash_profile. The following command is a one-command line:
echo "export LANGUAGE=en_US.UTF-8export LANG=en_US.UTF-8export LC_ALL=en_US.UTF-8">>~/.bash_profile
You could also run each command separately:
echo "export LANGUAGE=en_US.UTF-8">>~/.bash_profile
Alternatively, edit ~/.bash_profile “by hand” with nano, vim or a graphical editor like gedit or xed (Linux Mint).
Don’t forget to reboot and check if the new locales are applied with the locale command.
Another solution is to add the locale variables to /etc/environment instead of ~/.bash_profile.
By Johannes Eva, April 2017 – October 2022
29 thoughts on “How to Install Firefox on Linux Mint, Ubuntu, Debian or any other Linux distribution”
I was wanting to update Firefox on my Ubuntu Trusty (14.04). I finally came across this article and … tahdah. Now I have Firefox 83 installed and working perfectly. Thank you so much for this article. One question – can I also install the latest Thunderbird in the same manner?
And please folks, no comments like – just upgrade to the newest Ubuntu. Trusty works perfect. I have Apache installed and it works perfect also. So why should I update/upgrade to a newer version when I have perfection now. You know the old saying – If it works don’t fix it.
Thank you John! Yes, Thunderbird can be installed/upgraded the same way 🙂
Hello, I’m French.
It’s hard to me to understand English so when it’s electronic language, it’s very very hard. But I tried (even if I doesn’t understand, even while translating). And when I tried, I succeed to extract the file (yeeaah!) but I can’t move Firefox to
/opt, it says “no such file or directory” like Kurman (an other user). But how am I doing now ? I search a lot of solutions and nothing works. Netflix doesn’t want to work with my old Firefox (the 66.0.3 version). Am I going to get there someday? After Netflix, it will be some important things…Please, help me. (Once I could watch Netflix…)
Thanks for the article!
You may have to create the
/optdirectory first:sudo mkdir /optGood luck!
Note: When the default version of Firefox is upgraded by the system, the symlink
/usr/bin/firefoxis overwritten and you will either have re-create it or just lock the currently installed version in Synaptic to prevent that from happening altogether:Great article. In the case of Firefox newer is better. Every update since Quantum debuted has brought it closer to perfection. Oh, I think it may be ‘inexperienced’, rather than ‘unexperienced’. Regardless, the advice is sound.
It’s always best for newbies to practice caution. Then again, it took a few self inflicted system meltdowns to really start getting the hang of this Linux thing.
Thank you for your comment and for the correction!
If I just remove the old Firefox folder in
/opt, what about my favorites settings? Am I gonna lost it all?@Rafael: no, you won’t loose your Firefox settings. These are stored in your profile folder. On Linux, you profile folder is in your home directory, in the
.mozilla/firefoxsub-folder. You may need to show hidden files and folders (use Ctrl + H or the “View” menu) to navigate to the profile folder.If you only have one profile, its folder has “default” in the name. The complete path of the Firefox profile folder will be something like:
/home/user_name/.mozilla/firefox/random_string.defaultThis folder allows for an awful lot of flexibility, for example you can:
Is easier get it there: https://packages.debian.org/sid/amd64/firefox/download
Thank you, this is indeed useful. Installing Firefox from .deb packages is also a viable option. Keep in mind that the recommendation is the same as when installing from the tar.gz archive: “it is strongly suggested to use a package manager like aptitude or synaptic to download and install packages, instead of doing so manually via this website.”
Make friends with the terminal!
Sure, it’s been quite some time since 2015: Users must extract from the “tar” archive and use a password-enabled (root) terminal (or sudo) to perform the subsequent file actions. Simply invoking a file manager and then copying/pasting won’t work.
The reason Debian users end up here:
Note that Debian’s repository version of Firefox still is named “firefox-esr,” not simply “firefox” (Before, it was “iceweasel” – a legality, still in effect with firefox-esr): Debian proves perhaps the most conservative distro in the Linux realm. As was noted in an old saying: “They wear both a belt and suspenders!”
The problem is that institutions performing secure transactions (say, global financial corporations) – along with many still-perplexed users (who generally aren’t bare novices) – dislike legacy browser versions. Debian purists dislike the corporate bent of Mozilla’s Firefox development. (After all, it’s firefox.com, not firefox.org.)
Thank you. Simple, clear and helpful. Works for me on Linux Mint (64 Bit)
I’ve extracted the file but I can’t move it to
/opt, it says no such file or directory.Kumar, you’re probably in the wrong directory when running the
movecommand – or using the wrong file name. Using the TAB key to autocomplete the file name helps to know if you’re right: if it autocompletes the file or directory names, it’s right, else it’s wrong. Of course, listing files with thelscommand also shows if you have extracted the archive correctly.For future reference,
tar xf filewill deal with the compression without having to specify it.Pingback: Install the latest FireFox in CentOS 7 - UncleNinja
Pingback: Upgrade Firefox di Linux Mint | Catatan dan Wiki Personal
FF 45 in Mint does not open groups of tabs anymore. So that seems broken.
I went back to a former version. The repository only offered FF 28… But this one still works.
The Tab Groups (Panorama) feature has been discontinued. There are Firefox add-ons with similar features, check the official announcement from Mozilla:
https://support.mozilla.org/en-US/kb/tab-groups-removal
I have other problem 🙂 I unpacked firefox (did same with thunderbird), created symbolic links and everything, but still, when I run firefox or thunderbird, it said it is not default browser/email client and I can’t turn it off. It is not really functional problem, but it is reaaaaaally annoying 🙂 in preffered applications is set firefox and thunderbird (the original mint firefox and thunderbird don’t have this problem), is there any way (and I am sure there is) how to set unzipped TB and FF as default? BTW I am using common profiles for windows and for mint 17.3 in both applications. THX 🙂
I figured out something, I turned off check for default application in settings (during start of application, it ignored it 🙂 ) I hope it will work
I really do try to like Linux… but I just can’t understand why I can’t just UPDATE my firefox in one click? The version is there – why do I need to start entering commands and copying folders for something as trivial as that?
Well, in fact this tutorial is for advanced users, most of which are installing Firefox on their own on custom Linux systems. Or trying Firefox Beta/Aurora or other special versions of Firefox.
In your case you’re probably using mainstream distributions such are Ubuntu, Linux Mint, Debian, OpenSuse, Fedora, … The package manager of your distro will take care of updating Firefox by itself, when when the new Ffox version has been tested for compatibility with your distro, so that it doesn’t break anything. On Ubuntu or Linux Mint, for example, it takes just a few days after the official release.
Please do NOT use this guide to update Firefox by hand if you’re just a “normal” user or a Linux beginner. Just apply the normal updates (as you should always do) for your distribution and you’ll get the new Firefox version. I’ll try to make a version of this guide for beginners and normal users soon, as it seems to be really confusing. Sorry for that.
You state here, and I’ve seen in other places, that Debian-based package managers will release firefox updates “just a few days after the official release”. That has not been my experience. I run Linux Mint 17.3, and as of today (4/30/2016), my firefox from the package manager is version 42.0. The following version (43.0) was released 4.5 months ago on December 15th, and version 46.0 was released this week. What am I missing?
I also run Mint 17.3, the Firefox version is 45 and it should be updated to 46 very soon. I can’t explain why you’re stuck with an older version. I suppose you ran
sudo apt-get update? If nothing else works, I would suggest to install the newest Firefox version manually as described in this guide.Update: The update to Firefox 46 just showed up in the update manager. It took 4 days to the Linux Mint team to check and distribute the update, which is fine.
Pingback: How to install Firefox 43 on Linux Mint, Ubuntu, Debian, CentOS, Fedora - Free Networking Tutorials, Free System Administration Tutorials and Free Security Tutorials
How do I upgrade the current installation with the tar.b2? I’m on Ubuntu-Mate-15.10 & it doesn’t appear to be in the /opt directory.
Ubuntu will take care of Firefox upgrades automatically, you don’t have to do it manually. It may take a few days after the official release for the Firefox upgrade to show on, because the Ubuntu folks have to test the new release with Ubuntu.
There is no Firefox install in
/optby default, as this is where admins/users are supposed to install optional software. If you did not install anything in/optmanually, nothing show up there, which is normal.Hope this helps!