- For downloading the - as of now - latest Firefox ESR, 10.0.9, get to a Terminal and run:
To download the latest Firefox ESR at a later date, simply visit the below link, browse down to the latest version build for the architecture you are using (32 or 64-bit), and download the package manually:
- Now extract it into ‘/opt’:
sudo tar -xvjf firefox-10.0.9.tar.bz2 -C /opt
- Back up your existing symbolic link to the default Firefox executable:
sudo mv /usr/bin/firefox /usr/bin/firefox-old
- Create a symbolic link to the Firefox ESR executable:
sudo ln -s /opt/firefox/firefox /usr/bin/firefox
Note: Chris Coulsen down there in the comments is right, when the default version of Firefox is upgraded, you’d need to repeat this step, or you could just lock the currently installed version via Synaptic (!), to prevent that from happening altogether, and to avoid any unnecessary updates being pulled in for a Firefox version you don’t use anyway; we forgot to mention that upon writing this post initially.
Now you can simply click your existing Firefox shortcuts for launching Firefox ESR.
Later, if you want to revert to your old, distribution-supported version of Firefox, you’ll need to run this command:
sudo mv /usr/bin/firefox-old /usr/bin/firefox
To check for and install updates to the Firefox ESR, press Alt + F2 and from the dialog that appears, run:
This will launch Firefox ESR with root privileges. From Firefox, go to ‘Help > About Firefox’ and see if any updates are available. By default, Firefox downloads any available updates automatically, in that case you only need to click on ‘Apply Updates’, otherwise you’d need to click on ‘Check for Updates’ before. In either case, after clicking ‘Apply Updates’ confirm the restart of Firefox, still with root privileges, so that Firefox is able to actually apply the updates!