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I am using Ubuntu 14.04. After downloading firefox-50.0.2.tar.bz2, I have unpacked it and then installed. When I click on Firefox on the Dash it opens the old version. The new version works through downloaded folder. How to get rid of the old version?

Other question: New Firefox is in the /Downloads folder. To which folder should I copy it, to keep it with other programs?

//Edit:

I have just uninstalled old version :)

Then I have used whereis firefox command and popped out: /etc/firefox /usr/lib/firefox. So I followed these instructions and I found folder with previous Firefox. It still contained a few files. I tried to cut and paste Firefox folder from my /Downloads folder but It is not working. How should I copy those new Firefox files so that it will appear in the Dash?


Thank you for all your replies. For sure I will study now more about terminal and commands. I tried to avoid it on the beginning before studying it well, because last time I have just erased my other OS by using terminal...

Before I checked this forum I made a small thing. I had accessed /etcfolder as an administrator (right click>access as a administrator) and then I have just paste new Firefox folder replacing old one. Can it stay there or should I move it to /opt/ or /usr/local/ ?

//Edit

I had copied Firefox folder to /opt/ and later I opened the terminal. There I run sudo apt-get install --reinstall firefox. Firefox 50.0.2 is working good now and I can run it through the Dash. Reinstallation fixed also Firefox's launchpad icon that was missing before.

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First of all, you don't install applications into the download folder. You can place them in your home or /opt folders. So that download should have been in either of these.

Now for what you were trying to do, I am not too sure, but it's a bad idea when you're new to Linux or Ubuntu in particular to install applications from outside the normal package system. But in any case we are all learning so to help you I suggest you look at this excellent question, that should be helpful.

If you were trying to do a simple upgrade then simply running sudo apt-get update and then sudo apt-get dist-upgrade should help.

Hope it helps, but do visit that question. It's really helpful.

  • @wjandrea, excellent edit. Hope I will be that good soon. Thank you – George Udosen Dec 4 '16 at 7:41
  • Thanks @George. Your link to another topic on this forum is very useful. Actually there is all I needed to know about installation of new verisions of Firefox. – bombelsky Dec 4 '16 at 16:15
  • so i guess you can mark my answer as the accepted solution ? Glad to have been of help – George Udosen Dec 4 '16 at 16:26
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I suggest you just stick to normal packaged versions of Firefox, and don't install from independently downloaded tarballs.

  • Press Ctrl-Alt-T to open a terminal
  • Run sudo apt-get update (updates the package list on your machine)
  • Run sudo apt-get upgrade (fetches and installs new versions of your software)

I checked and I can see that Firefox 50.0.2 should be available using the above approach on 14.04 (source).

If you want a nice graphical interface for installing software, try sudo apt-get install synaptic, then you will have a program called Synaptic that will be accessible from the Ubuntu menu, allowing easy installation of the latest-available versions of a wide range of packages.

  • Thanks! I am starting to get more familiar with the terminal. Yours instructions are very clear. – bombelsky Dec 4 '16 at 16:12

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