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I noticed that Firefox 21 doesn't work in Ubuntu 12.04 (I upgraded Ubuntu recently). It pops up a message which says: "Your Firefox profile cannot be loaded. It may be missing or inaccessible". I was looking for a solution and nothing worked for me. So I downloaded Firefox 20.0.1 (the .tar file), I installed it and it works, but I don't know how to install it properly. I mean, when I install Firefox from the terminal or Ubuntu Software Centre it appears in the panel with its icon and all that. But installing it from the .tar file is just paste the extracted folder in some direction (in my case /opt/firefox/firefox) and to run Firefox I need to go to that direction and clicking in the firefox file. What I really want to know is how can I install Firefox so it seems to be as installed from terminal or Ubuntu Software Centre, I mean, with its appropriate icon in the panel, and with the possibility to running it from terminal using the "firefox" command. Or if necessary, in which system folder should I paste the extracted folder?

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1 Answer 1

I think you're better off figuring out why Firefox 21 isn't working for you. The problem might not be with Firefox 21, but with a corrupted profile that will affect all Ubuntu versions of Firefox.

That aside, you can load Firefox 20 from the lucid-security repo:

sudo apt-add-repository 'deb http://us.archive.ubuntu.com/ubuntu/ lucid-security main'
sudo apt-get update
sudo apt-get install firefox/lucid-security

On my system running 12.04 (precise), part of the resulting output shows:

dpkg: warning: downgrading firefox from 21.0+build2-0ubuntu0.12.04.3 to 20.0+build1-0ubuntu0.10.04.3.
(Reading database ... 332312 files and directories currently installed.)
Preparing to replace firefox 21.0+build2-0ubuntu0.12.04.3 (using .../firefox_20.0+build1-0ubuntu0.10.04.3_i386.deb) ...

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Wow, it really worked!! Now I'm writing this comment from Firefox. And it has been installed properly. Thank so much! I'm going to accept your answer but first I need to be sure any related problem won't show again. –  Luis J. Romero Jun 3 '13 at 0:24
    
Good that it worked but, as the answer suggests, you really should figure out why Firefox 21 isn't working for you. –  user25656 Jun 3 '13 at 5:32
    
There's a possible solution in the second answer of this question askubuntu.com/questions/302891/… I also want to ask: How can I stop Ubuntu Update Manager telling me to update to Firefox 21? I worry the same problem coming back if I update. –  Luis J. Romero Jun 5 '13 at 2:40
    
@Luis J. Romero, here is a post on hiding unwanted updates: askubuntu.com/questions/23371/how-to-hide-unwanted-updates. Under Ubuntu 12.04.2 LTS, both apt-mark hold and locking from the Synaptic GUI both seem to keep Firefox off the Update Manager list. –  Mark Berry Aug 15 '13 at 20:06

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