Firefox 95 comes with RLBox and site blocking mode for everyone, improvements for Wayland and much more

The launch of the new version of the Firefox 95 web browser, along with which a version update was also generated with a long support period Firefox 91.4.0.

In addition to the innovations and bug fixes featured in this new version of Firefox 95, se 18 vulnerabilities have been fixed, of which 11 are marked as dangerous. 8 vulnerabilities are caused by memory problems, such as buffer overflows and access to already freed memory areas. These problems could potentially lead to the execution of attacking code when opening specially crafted pages.

Main new features of Firefox 95

In this new version of Firefox 95 an additional insulation layer based on RLBox technology has been implemented for all supported platforms. The proposed insulation layer provides blocking of security problems in libraries of third-party functions which are not under the control of the Firefox developers, but which can compromise the main project if vulnerabilities are identified. The current version uses RLBox to isolate the Graphite, Hunspell, and Ogg libraries, and the next version is expected to isolate Expat and Woff2.

To all users, site lockdown mode has been activated, developed within the framework of the Fission project. Unlike the arbitrary distribution of the tab processing in the available process group (8 by default), which has been used so far, the lock mode moves the processing of each site to its own separate process, with division not by tabs , but by domains.

Also Work continued to improve support for the Wayland protocol. The Wayland port of Firefox has been brought to general parity in functionality with the X11 build when running in the GNOME environment. In the context menu «PIP» (Picture-in-Picture) the option was added to move the play mode switch button in the opposite direction in the video.

Proactive JavaScript code compilation technology has been implemented, It has improved page load performance. Optimizations have been made to the memory allocation system.

Enabled a user agent value override for Slack.com to "Chrome", which allowed access to additional Slack features, such as voice / video calls and huddles thatpreviously not available when opening a site in Firefox.

In the Android version, a new Start section has been implemented in the settings menu. The «Jump back in» page provides the display of the main images of the sites (Hero Image). A confirmation message has been implemented when the automatic tab closing mode is enabled.

How to install or update the new version of Firefox on Linux?

Firefox users who have not disabled automatic updates will receive the update automatically. Those who don't want to wait for that to happen can select Menu> Help> About Firefox after the official launch to initiate a manual update of the web browser.

The screen that opens displays the currently installed version of the web browser and runs a check for updates, provided the functionality is enabled.

Another option to update, is yes you are a user of Ubuntu, Linux Mint or some other derivative of Ubuntu, You can install or update to this new version with the help of the browser's PPA.

This can be added to the system by opening a terminal and executing the following command in it:

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

In the case of Arch Linux users and derivatives, just run in a terminal:

sudo pacman -Syu

Or to install with:

sudo pacman -S firefox

Finally for those who prefer to use Snap packages, They will be able to install the new version as soon as it is released in the Snap repositories.

But they can get the package directly from Mozilla's FTP. With the help of a terminal by typing the following command:

wget https://ftp.mozilla.org/pub/firefox/releases/95.0/snap/firefox-95.0.snap

And to install the package we just type:

sudo snap install firefox-95.0.snap

Finally, you can get the browser with the latest installation method that was added "Flatpak". To do this, they must have support for this type of package.

Installation is done by typing:

flatpak install flathub org.mozilla.firefox

For all other Linux distributions can download the binary packages from the following link.

In the near future, the Firefox 96 version will carry over to the beta testing stage, which is scheduled to launch on January 11.