How to Install Firefox 48 on Ubuntu and Enable Multi Process

   Firefox multi process support, which separate web content and Firefox UI process, was finally added in version 48 which was released on August 2, 2016. This is deemed to bring better responsiveness, stability, and security.

Firefox 48 Changelog :

•     Enhanced protection against harmful downloads
•     Media improvement for the Android version
•     Mandatory Add-On Signing
•     GNU/Linux version gets better Canvas performance with speedy Skia support.
•     Stable WebExtension support

Installation instructions:

Add the PPA to your system, update the local repository index and install the Firefox package:

$ sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa $ sudo apt-get update $ sudo apt-get install firefox

Optional, to remove Firefox, do:

$ sudo apt-get remove firefox

To check your Firefox version on Ubuntu, go to Help > About Firefox.


How to Enable Firefox Multi ProcessMozilla enables multi-support in Firefox 48 for 1 percent of users. To check if Multi-Process is enabled on your Firefox, type about:support in the address bar. If the value of Multiprocess Windows is 1, then it’s enabled.


To manually enable it, type about:config in the address bar. Press Enter. Then type

browser.tabs.remote.autostart

in the search bar and toggle the value of this boolean to true. Then restart Firefox.