By default, Mozilla Firefox automatically update itself but you can also do a manual update. You can update your firefox by following steps.
Method : 1
First go to your Application Launcher of Ubuntu menu. Follow complete path as given below.
Applications –> System Tools –> Administration –> Software Updater
As shown in Image, Select Firefox option and click on Install Now.
Now you can check your version of Firefox from path Help –> About Firefox.You will find your updated version of Mozilla Firefox.
Method : 2
If the update didn’t work for you, don’t worry, you can download and install the latest Firefox version from website mozilla.org for your operating system and language. This will be fresh installation of Firefox. Steps are given below.
Run this command on your terminal “sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa”
Jhon@MYPLANET:~$ sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa [sudo] password for Jhon: Staging PPA for Mozilla and other browser-related security updates. Unless you are testing updates, you should not install packages from this PPA More info: https://launchpad.net/~ubuntu-mozilla-security/+archive/ubuntu/ppa Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmp0kcreuxh/secring.gpg' created gpg: keyring `/tmp/tmp0kcreuxh/pubring.gpg' created gpg: requesting key 7EBC211F from hkp server keyserver.ubuntu.com gpg: /tmp/tmp0kcreuxh/trustdb.gpg: trustdb created gpg: key 7EBC211F: public key "Launchpad PPA for Ubuntu Mozilla Security Team" imported gpg: no ultimately trusted keys found gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK
Now Run this command on your terminal “sudo apt-get update”
parveen@MYPLANET:~$ sudo apt-get update Ign http://extras.ubuntu.com trusty InRelease Ign http://security.ubuntu.com trusty-security InRelease Ign http://ppa.launchpad.net trusty InRelease Ign http://in.archive.ubuntu.com trusty InRelease Get:1 http://extras.ubuntu.com trusty Release.gpg [72 B] Get:2 http://security.ubuntu.com trusty-security Release.gpg [933 B] Get:3 http://ppa.launchpad.net trusty Release.gpg [316 B] Ign http://in.archive.ubuntu.com trusty-updates InRelease Hit http://extras.ubuntu.com trusty Release Get:4 http://security.ubuntu.com trusty-security Release [62.0 kB] Get:5 http://ppa.launchpad.net trusty Release [15.1 kB] Ign http://in.archive.ubuntu.com trusty-backports InRelease Hit http://extras.ubuntu.com trusty/main Sources Hit http://in.archive.ubuntu.com trusty Release.gpg Hit http://extras.ubuntu.com trusty/main amd64 Packages Get:6 http://ppa.launchpad.net trusty/main amd64 Packages [23.5 kB] Hit http://extras.ubuntu.com trusty/main i386 Packages Get:7 http://in.archive.ubuntu.com trusty-updates Release.gpg [933 B] Get:8 http://security.ubuntu.com trusty-security/main Sources [71.4 kB] Hit http://in.archive.ubuntu.com trusty-backports Release.gpg Get:9 http://ppa.launchpad.net trusty/main i386 Packages [23.5 kB] Hit http://in.archive.ubuntu.com trusty Release Get:10 http://security.ubuntu.com trusty-security/restricted Sources [2,061 B] Get:11 http://in.archive.ubuntu.com trusty-updates Release [62.0 kB] Get:12 http://security.ubuntu.com trusty-security/universe Sources [17.9 kB] Get:13 http://ppa.launchpad.net trusty/main Translation-en [7,321 B] Get:14 http://security.ubuntu.com trusty-security/multiverse Sources [1,896 B] Get:15 http://security.ubuntu.com trusty-security/main amd64 Packages [220 kB] Hit http://in.archive.ubuntu.com trusty-backports Release Hit http://in.archive.ubuntu.com trusty/main Sources Get:16 http://security.ubuntu.com trusty-security/restricted amd64 Packages [8,875 B] Ign http://extras.ubuntu.com trusty/main Translation-en_IN Hit http://in.archive.ubuntu.com trusty/restricted Sources Get:17 http://security.ubuntu.com trusty-security/universe amd64 Packages [87.7 kB] Hit http://in.archive.ubuntu.com trusty/universe Sources Ign http://extras.ubuntu.com trusty/main Translation-en Hit http://in.archive.ubuntu.com trusty/multiverse Sources Get:18 http://security.ubuntu.com trusty-security/multiverse amd64 Packages [3,458 B] Hit http://in.archive.ubuntu.com trusty/main amd64 Packages Get:19 http://security.ubuntu.com trusty-security/main i386 Packages [210 kB] Hit http://in.archive.ubuntu.com trusty/restricted amd64 Packages Hit http://in.archive.ubuntu.com trusty/universe amd64 Packages Hit http://in.archive.ubuntu.com trusty/multiverse amd64 Packages Get:20 http://security.ubuntu.com trusty-security/restricted i386 Packages [8,846 B] Hit http://in.archive.ubuntu.com trusty/main i386 Packages Get:21 http://security.ubuntu.com trusty-security/universe i386 Packages [87.7 kB] Hit http://in.archive.ubuntu.com trusty/restricted i386 Packages Get:22 http://security.ubuntu.com trusty-security/multiverse i386 Packages [3,624 B] Get:23 http://security.ubuntu.com trusty-security/main Translation-en [113 kB] Hit http://in.archive.ubuntu.com trusty/universe i386 Packages Hit http://in.archive.ubuntu.com trusty/multiverse i386 Packages Hit http://in.archive.ubuntu.com trusty/main Translation-en Hit http://in.archive.ubuntu.com trusty/multiverse Translation-en Hit http://security.ubuntu.com trusty-security/multiverse Translation-en Hit http://security.ubuntu.com trusty-security/restricted Translation-en Hit http://in.archive.ubuntu.com trusty/restricted Translation-en Hit http://security.ubuntu.com trusty-security/universe Translation-en Hit http://in.archive.ubuntu.com trusty/universe Translation-en Get:24 http://in.archive.ubuntu.com trusty-updates/main Sources [180 kB] Get:25 http://in.archive.ubuntu.com trusty-updates/restricted Sources [2,061 B] Get:26 http://in.archive.ubuntu.com trusty-updates/universe Sources [105 kB] Get:27 http://in.archive.ubuntu.com trusty-updates/multiverse Sources [4,463 B] Get:28 http://in.archive.ubuntu.com trusty-updates/main amd64 Packages [446 kB] Get:29 http://in.archive.ubuntu.com trusty-updates/restricted amd64 Packages [8,875 B] Get:30 http://in.archive.ubuntu.com trusty-updates/universe amd64 Packages [254 kB] Get:31 http://in.archive.ubuntu.com trusty-updates/multiverse amd64 Packages [11.2 kB] Get:32 http://in.archive.ubuntu.com trusty-updates/main i386 Packages [436 kB] Get:33 http://in.archive.ubuntu.com trusty-updates/restricted i386 Packages [8,846 B] Get:34 http://in.archive.ubuntu.com trusty-updates/universe i386 Packages [255 kB] Get:35 http://in.archive.ubuntu.com trusty-updates/multiverse i386 Packages [11.3 kB] Hit http://in.archive.ubuntu.com trusty-updates/main Translation-en Hit http://in.archive.ubuntu.com trusty-updates/multiverse Translation-en Hit http://in.archive.ubuntu.com trusty-updates/restricted Translation-en Hit http://in.archive.ubuntu.com trusty-updates/universe Translation-en Hit http://in.archive.ubuntu.com trusty-backports/main Sources Hit http://in.archive.ubuntu.com trusty-backports/restricted Sources Hit http://in.archive.ubuntu.com trusty-backports/universe Sources Hit http://in.archive.ubuntu.com trusty-backports/multiverse Sources Hit http://in.archive.ubuntu.com trusty-backports/main amd64 Packages Hit http://in.archive.ubuntu.com trusty-backports/restricted amd64 Packages Hit http://in.archive.ubuntu.com trusty-backports/universe amd64 Packages Hit http://in.archive.ubuntu.com trusty-backports/multiverse amd64 Packages Hit http://in.archive.ubuntu.com trusty-backports/main i386 Packages Hit http://in.archive.ubuntu.com trusty-backports/restricted i386 Packages Hit http://in.archive.ubuntu.com trusty-backports/universe i386 Packages Hit http://in.archive.ubuntu.com trusty-backports/multiverse i386 Packages Hit http://in.archive.ubuntu.com trusty-backports/main Translation-en Hit http://in.archive.ubuntu.com trusty-backports/multiverse Translation-en Hit http://in.archive.ubuntu.com trusty-backports/restricted Translation-en Hit http://in.archive.ubuntu.com trusty-backports/universe Translation-en Ign http://in.archive.ubuntu.com trusty/main Translation-en_IN Ign http://in.archive.ubuntu.com trusty/multiverse Translation-en_IN Ign http://in.archive.ubuntu.com trusty/restricted Translation-en_IN Ign http://in.archive.ubuntu.com trusty/universe Translation-en_IN Fetched 2,755 kB in 45s (61.0 kB/s) Reading package lists... Done
Now run this command “sudo apt-get install firefox”
Jhon@MYPLANET:~$ sudo apt-get install firefox Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: linux-image-generic Use 'apt-get autoremove' to remove it. Suggested packages: ttf-lyx The following packages will be upgraded: firefox 1 upgraded, 0 newly installed, 0 to remove and 497 not upgraded. Need to get 39.8 MB of archives. After this operation, 30.8 MB of additional disk space will be used. Get:1 http://in.archive.ubuntu.com/ubuntu/ trusty-updates/main firefox amd64 36.0+build2-0ubuntu0.14.04.4 [39.8 MB] Fetched 39.8 MB in 1min 4s (613 kB/s) (Reading database ... 173847 files and directories currently installed.) Preparing to unpack .../firefox_36.0+build2-0ubuntu0.14.04.4_amd64.deb ... Unpacking firefox (36.0+build2-0ubuntu0.14.04.4) over (28.0+build2-0ubuntu2) ... Processing triggers for man-db (2.6.7.1-1) ... Processing triggers for gnome-menus (3.10.1-0ubuntu2) ... Processing triggers for desktop-file-utils (0.22-1ubuntu1) ... Processing triggers for bamfdaemon (0.5.1+14.04.20140409-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for mime-support (3.54ubuntu1) ... Setting up firefox (36.0+build2-0ubuntu0.14.04.4) ... Installing new version of config file /etc/apparmor.d/usr.bin.firefox ... Please restart all running instances of firefox, or you will experience problems.
