$apt-get update
Ign
http://dl.google.com stable InRelease
Hit
http://dl.google.com stable Release.gpg
Hit
http://dl.google.com stable Release
Ign
http://archive.ubuntu.com trusty InRelease
Hit
http://ppa.launchpad.net trusty InRelease
Ign
http://extras.ubuntu.com trusty InRelease
Get:1
http://archive.ubuntu.com trusty-updates InRelease [65.9 kB]
Hit
http://dl.google.com stable/main amd64 Packages
Get:2
http://extras.ubuntu.com trusty Release.gpg [72 B]
Ign
http://repo.mongodb.org trusty/mongodb-org/3.4 InRelease
Hit
http://repo.mongodb.org trusty/mongodb-org/3.4 Release.gpg
Hit
http://repo.mongodb.org trusty/mongodb-org/3.4 Release
Hit
http://repo.mongodb.org trusty/mongodb-org/3.4/multiverse amd64 Packages
Ign
http://repo.mongodb.org trusty/mongodb-org/3.4/multiverse Translation-en_IN
Ign
http://repo.mongodb.org trusty/mongodb-org/3.4/multiverse Translation-en
Hit
http://ppa.launchpad.net trusty InRelease
Hit
http://extras.ubuntu.com trusty Release
Hit
http://archive.ubuntu.com trusty-backports InRelease
Hit
http://extras.ubuntu.com trusty/main Sources
Get:3
http://archive.ubuntu.com trusty-security InRelease [65.9 kB]
Hit
http://ppa.launchpad.net trusty InRelease
Hit
http://extras.ubuntu.com trusty/main amd64 Packages
Hit
http://archive.ubuntu.com trusty Release.gpg
Hit
http://extras.ubuntu.com trusty/main i386 Packages
Get:4
http://archive.ubuntu.com trusty-updates/main Sources [409 kB]
Hit
http://ppa.launchpad.net trusty InRelease
Hit
http://ppa.launchpad.net trusty InRelease
Get:5
http://archive.ubuntu.com trusty-updates/restricted Sources [6,322 B]
Ign
http://dl.google.com stable/main Translation-en_IN
Ign
http://dl.google.com stable/main Translation-en
Get:6
http://archive.ubuntu.com trusty-updates/universe Sources [195 kB]
Hit
http://ppa.launchpad.net trusty InRelease
Get:7
http://archive.ubuntu.com trusty-updates/multiverse Sources [7,781 B]
Get:8
http://archive.ubuntu.com trusty-updates/main amd64 Packages [1,045 kB]
Get:9
http://ppa.launchpad.net trusty InRelease [15.5 kB]
Ign
http://ppa.launchpad.net trusty InRelease
Hit
http://ppa.launchpad.net trusty InRelease
Ign
http://extras.ubuntu.com trusty/main Translation-en_IN
Get:10
http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [17.2 kB]
Hit
http://ppa.launchpad.net trusty InRelease
Ign
http://extras.ubuntu.com trusty/main Translation-en
Get:11
http://archive.ubuntu.com trusty-updates/universe amd64 Packages [437 kB]
Hit
http://ppa.launchpad.net trusty InRelease
Hit
http://ppa.launchpad.net trusty/main Sources
Get:12
http://archive.ubuntu.com trusty-updates/multiverse amd64 Packages [14.9 kB]
Get:13
http://archive.ubuntu.com trusty-updates/main i386 Packages [985 kB]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Get:14
http://archive.ubuntu.com trusty-updates/restricted i386 Packages [17.0 kB]
Get:15
http://archive.ubuntu.com trusty-updates/universe i386 Packages [435 kB]
Get:16
http://archive.ubuntu.com trusty-updates/multiverse i386 Packages [15.3 kB]
Get:17
http://archive.ubuntu.com trusty-updates/main Translation-en [516 kB]
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Get:18
http://archive.ubuntu.com trusty-updates/multiverse Translation-en [7,760 B]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Get:19
http://archive.ubuntu.com trusty-updates/restricted Translation-en [4,031 B]
Get:20
http://archive.ubuntu.com trusty-updates/universe Translation-en [236 kB]
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Hit
http://archive.ubuntu.com trusty-backports/main Sources
Hit
http://archive.ubuntu.com trusty-backports/restricted Sources
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Hit
http://archive.ubuntu.com trusty-backports/universe Sources
Hit
http://archive.ubuntu.com trusty-backports/multiverse Sources
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/main amd64 Packages
Hit
http://archive.ubuntu.com trusty-backports/restricted amd64 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Hit
http://archive.ubuntu.com trusty-backports/universe amd64 Packages
Hit
http://archive.ubuntu.com trusty-backports/multiverse amd64 Packages
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Hit
http://archive.ubuntu.com trusty-backports/main i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/restricted i386 Packages
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/universe i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/multiverse i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/main Translation-en
Hit
http://ppa.launchpad.net trusty/main Translation-en
Hit
http://archive.ubuntu.com trusty-backports/multiverse Translation-en
Hit
http://archive.ubuntu.com trusty-backports/restricted Translation-en
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://archive.ubuntu.com trusty-backports/universe Translation-en
Get:21
http://archive.ubuntu.com trusty-security/main Sources [147 kB]
Hit
http://ppa.launchpad.net trusty/main Translation-en
Hit
http://ppa.launchpad.net trusty/main Sources
Get:22
http://archive.ubuntu.com trusty-security/restricted Sources [4,931 B]
Get:23
http://archive.ubuntu.com trusty-security/universe Sources [67.2 kB]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Get:24
http://archive.ubuntu.com trusty-security/multiverse Sources [3,182 B]
Get:25
http://archive.ubuntu.com trusty-security/main amd64 Packages [698 kB]
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Get:26
http://ppa.launchpad.net trusty/main Sources [1,505 B]
Get:27
http://ppa.launchpad.net trusty/main amd64 Packages [1,882 B]
Get:28
http://ppa.launchpad.net trusty/main i386 Packages [1,882 B]
Get:29
http://archive.ubuntu.com trusty-security/restricted amd64 Packages [14.1 kB]
Get:30
http://archive.ubuntu.com trusty-security/universe amd64 Packages [199 kB]
Get:31
http://ppa.launchpad.net trusty/main Translation-en [251 B]
Ign
http://ppa.launchpad.net trusty Release.gpg
Get:32
http://archive.ubuntu.com trusty-security/multiverse amd64 Packages [4,800 B]
Get:33
http://archive.ubuntu.com trusty-security/main i386 Packages [641 kB]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Hit
http://ppa.launchpad.net trusty/main Sources
Get:34
http://archive.ubuntu.com trusty-security/restricted i386 Packages [13.9 kB]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Get:35
http://archive.ubuntu.com trusty-security/universe i386 Packages [195 kB]
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Hit
http://ppa.launchpad.net trusty/main Translation-en
Get:36
http://archive.ubuntu.com trusty-security/multiverse i386 Packages [4,958 B]
Get:37
http://archive.ubuntu.com trusty-security/main Translation-en [375 kB]
Hit
http://ppa.launchpad.net trusty/main amd64 Packages
Hit
http://ppa.launchpad.net trusty/main i386 Packages
Get:38
http://archive.ubuntu.com trusty-security/multiverse Translation-en [2,564 B]
Hit
http://ppa.launchpad.net trusty/main Translation-en
Get:39
http://archive.ubuntu.com trusty-security/restricted Translation-en [3,542 B]
Get:40
http://archive.ubuntu.com trusty-security/universe Translation-en [113 kB]
Ign
http://ppa.launchpad.net trusty Release
Hit
http://archive.ubuntu.com trusty Release
Hit
http://archive.ubuntu.com trusty/main Sources
Hit
http://archive.ubuntu.com trusty/restricted Sources
Hit
http://archive.ubuntu.com trusty/universe Sources
Hit
http://archive.ubuntu.com trusty/multiverse Sources
Hit
http://archive.ubuntu.com trusty/main amd64 Packages
Hit
http://archive.ubuntu.com trusty/restricted amd64 Packages
Hit
http://archive.ubuntu.com trusty/universe amd64 Packages
Hit
http://archive.ubuntu.com trusty/multiverse amd64 Packages
Hit
http://archive.ubuntu.com trusty/main i386 Packages
Hit
http://archive.ubuntu.com trusty/restricted i386 Packages
Hit
http://archive.ubuntu.com trusty/universe i386 Packages
Hit
http://archive.ubuntu.com trusty/multiverse i386 Packages
Hit
http://archive.ubuntu.com trusty/main Translation-en
Hit
http://archive.ubuntu.com trusty/multiverse Translation-en
Hit
http://archive.ubuntu.com trusty/restricted Translation-en
Hit
http://archive.ubuntu.com trusty/universe Translation-en
Ign
http://archive.ubuntu.com trusty/main Translation-en_IN
Ign
http://archive.ubuntu.com trusty/multiverse Translation-en_IN
Ign
http://archive.ubuntu.com trusty/restricted Translation-en_IN
Ign
http://archive.ubuntu.com trusty/universe Translation-en_IN
Err
http://ppa.launchpad.net trusty/main Sources
404 Not Found
Err
http://ppa.launchpad.net trusty/main amd64 Packages
404 Not Found
Err
http://ppa.launchpad.net trusty/main i386 Packages
404 Not Found
Ign
http://ppa.launchpad.net trusty/main Translation-en_IN
Ign
http://ppa.launchpad.net trusty/main Translation-en
Fetched 6,988 kB in 43s (160 kB/s)
W: Failed to fetch
http://ppa.launchpad.net/ubuntu-audi...source/Sources 404 Not Found
W: Failed to fetch
http://ppa.launchpad.net/ubuntu-audi...amd64/Packages 404 Not Found
W: Failed to fetch
http://ppa.launchpad.net/ubuntu-audi...-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
$apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
libx265-110 linux-headers-3.13.0-125 linux-headers-3.13.0-125-generic
Use 'apt-get autoremove' to remove them.
The following packages will be upgraded:
firefox firefox-locale-en
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 44.5 MB of archives.
After this operation, 21.5 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1
http://archive.ubuntu.com/ubuntu/ trusty-updates/main firefox amd64 57.0.3+build1-0ubuntu0.14.04.1 [43.8 MB]
Get:2
http://archive.ubuntu.com/ubuntu/ trusty-updates/main firefox-locale-en amd64 57.0.3+build1-0ubuntu0.14.04.1 [692 kB]
Fetched 44.5 MB in 54s (812 kB/s)
(Reading database ... 329943 files and directories currently installed.)
Preparing to unpack .../firefox_57.0.3+build1-0ubuntu0.14.04.1_amd64.deb ...
Unpacking firefox (57.0.3+build1-0ubuntu0.14.04.1) over (57.0.1+build2-0ubuntu0.14.04.1) ...
Preparing to unpack .../firefox-locale-en_57.0.3+build1-0ubuntu0.14.04.1_amd64.deb ...
Unpacking firefox-locale-en (57.0.3+build1-0ubuntu0.14.04.1) over (57.0.1+build2-0ubuntu0.14.04.1) ...
Processing triggers for hicolor-icon-theme (0.13-1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu1.1) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
Processing triggers for bamfdaemon (0.5.1+14.04.20140409-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.54ubuntu1.1) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up firefox (57.0.3+build1-0ubuntu0.14.04.1) ...
Please restart all running instances of firefox, or you will experience problems.
Setting up firefox-locale-en (57.0.3+build1-0ubuntu0.14.04.1) ...
that's it.