Firefox Quantum is already creating buzz among the internet users. It has been reported that latest version of the browser will be fast and efficient in compare to older version. It is first internet browser which is using the multi-core processor mechanism.
Though it is not out yet, you can try the unstable version of Firefox quantum in your ubuntu at your own risk.
How To Install Firefox Quantum beta in Ubuntu
Mozilla has an official PPA for the beta version. Type the below command.
sudo add-apt-repository ppa:mozillateam/firefox-next sudo apt update
Now, feel the difference.
But what if you want to install the older stable version of the firefox and can wait for the stable new version
To do that, type the commands below:
sudo apt remove firefox sudo add-apt-repository --remove ppa:mozillateam/firefox-next sudo apt install firefox