How can I replace my Firefox? The one I have came with the ISO Linux file but often crashes...

Asked by Alberto on 2015-10-20

Hello guys,
I found an answer about a similar problem but is old, 2006...
My Firefox came with the ISO file I installed when I installed Xubuntu 14-04-02 LTS.
I regularly updated the system and now, every now and then, my Firefox 41.0.2 crashes.
I wrote to Mozilla support and they need the crash report available typing the command "about:crashes".
But as my Firefox comes from a third party (Linux) this commad doesn't work...
So they told me to remove the original Firefox and to install a new one downloaded from their site, with which the about:crashes shuold work. In this way Mozilla's geeks could help my about the crashes...
Mind you, this is what I understood...!

What do you think?

How can I install the file I downloaded (it's bzip-compressed) without (I suppose) using Ubuntu Software Center?
When I had W XP I could do it running the executable, but now?
I don't want to make a mess...

Thank you

Question information

English Edit question
Ubuntu firefox Edit question
No assignee Edit question
Solved by:
Manfred Hampl
Last query:
Last reply:

What is the output of:

lsb_release -a; uname -a; apt-cache policy firefox


Your Firefox is only packaged for your distribution. It still comes from Mozilla.

Alberto (alberto-aimo) said : #3

Hello Andrew,

I raed what you wrote and what I can say is the command about:crashes gives the following message:

The address isn't valid

This is strange because commands about:? and about:config (I DID NOT CHANGE ANYTHIG) works correctly.

Following the data you asked for:

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
Linux trappolone 3.13.0-66-generic #108-Ubuntu SMP Wed Oct 7 15:21:40 UTC 2015 i686 athlon i686 GNU/Linux
  Installed: 41.0.2+build2-0ubuntu0.14.04.1
  Candidate: 41.0.2+build2-0ubuntu0.14.04.1
  Version table:
 *** 41.0.2+build2-0ubuntu0.14.04.1 0
        500 trusty-updates/main i386 Packages
        500 trusty-security/main i386 Packages
        100 /var/lib/dpkg/status
     28.0+build2-0ubuntu2 0
        500 trusty/main i386 Packages

Thanks and regards, Alberto

The version you have is the latest version. This is normal in Ubuntu. Canonical are pushing to keep Firefox bang up to date.

If you rename ~/.mozilla (I assume you do not use Thunderbird as your email client) then launch the browser, is it ok?


Alberto (alberto-aimo) said : #5

You are right, I don't use Thunderbird as my email client.

Please, I didn't get what I have to do:
should I rename the subdirectory /home/alberto/.mozilla? I know how to do so but not the new name of it...
Afterwards I should try and Launch Firefox to see the result, shouldn't I?


Alberto (alberto-aimo) said : #6

...more, if I type about:about in the Firefox URL bar the about:crashes command isn't listed. It might be omitted, as Mozilla say, but it sounds weird.

An idea...:
what if there were some problem with extensions?
I mean, a few minutes ago Ff crashed but didn't, that is: it displayed an Ubuntu message saying it had crashed (not true, as it was still working!) and asking what to do, leave closed or relaunch, and send a message to Mozilla. I looked for details and found:

extensions.sqlite corrupt or missing

And Ff was still working, correctly...!

I hope I could help you to help me



mv /home/alberto/.mozilla /home/alberto/.mozilla_old

Then launch the browser

Alberto (alberto-aimo) said : #8

Mumble mumble...
Question inside the question, I'm sorry:

By run you mean to type the whole command string you gave me to the prompt, don't you?
Or sould I open Terminal in /.mozilla and then.... I'm lost...


Just copy the command and paste it to the terminal. It's why I give the exact command.

Alberto (alberto-aimo) said : #10

Done. Something like a factory reset, isn't it?

-command about:crashes still gives: The address isn't valid,

-my old, dear settings, my bookmarks? Can I recover them? They should be stored in /home/alberto/.mozilla /home/alberto/.mozilla, am I right?


Read the command and think. Where do you think they are..

Alberto (alberto-aimo) said : #12

Hello, mumble mumble...

/home/alberto/.mozilla /home/alberto/.mozilla ?
 How can I load them?

Alberto (alberto-aimo) said : #13

I made a typing mistake...

/home/alberto/.mozilla ?

Then the next command you might suggest could be:

mv /home/alberto/mozilla ?


Best Manfred Hampl (m-hampl) said : #14

Based on actionparsnip's advice you have moved your folder with the settings to a backup location.
Due to the fact that starting firefox again has already created a new settings directory, yu have to move that away to be able to restore the old one. And then you can move the old one back.

mv /home/alberto/.mozilla /home/alberto/.mozilla_tmp
mv /home/alberto/.mozilla_old /home/alberto/.mozilla

@actionparsnip: also my firefox on Ubuntu does not understand about:crashes

Alberto (alberto-aimo) said : #15

Hello Manfred,
done, I got my settings and bookmarks back. Great.
Learnt something interesting, once again... Greater.
Cli makes me feel very inside the system...

There is still a huge lot of road to walk to become a geek... :-)

Thank you and thank Andrew, I guess he can read me.


Alberto (alberto-aimo) said : #16

Thanks Manfred Hampl, that solved my question.