Mozilla implements the Site Isolation feature in Firefox to make browsing more secure so you can turn it on

Mozilla has begun to implement the Site Isolation feature in Firefox in all available versions, both in the development channels and in the release stable version. A function whose objective is to protect browsing against attacks from malicious web pages.

This is not new, as a feature similar to Site Isolation is available in Chrome. A feature that, as its name suggests, what it does is create a kind of bubble that protects access to the user's private data when browsing the grid.

Safer browsing

Until now, Site Isolation was only available to Firefox Nightly users, but now it can already be activated in the stable version and in the other versions available. This is a feature that had been in testing for months under the codename Project Fission until Mozilla announced its intention to bring it to browsers in February 2019.

In operation, Site Isolation acts as an additional security boundary when browsing the web, separating web content from data of users by uploading in separate processes. The objective is to prevent a website with dangerous content from accessing data such as passwords, credit card numbers or other confidential information.

As reported in Bleeping Computer, with this function enabled the user is protected against vulnerabilities such as Meltdown and Spectre.

How to enable Site Isolation

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Site Isolation can be enabled in Firefox Stable, Release, Beta or Nightly. Simply access the experiment panel by typing about:config in the browser bar and searching for fission.autostart>"

On the right we will see a check box that is deactivated by default and we will have to change the value False toTrue. At that point we only have to restart Firefox for the changes to take effect.

In this way, navigation will be safer against possible threats of pages with malicious content.