Ng Zi Le said

Firefox has already had tracking protection. Why do we need Facebook Container?

Hello Ng Zi Le,

Facebook Container is enhanced tracking protection; you don't have to use either one; that's totally up to you.

See : https://blog.mozilla.org/blog/2019/06/04/firefox-now-available-with-enhanced-tracking-protection-by-default/

McCoy said

Ng Zi Le said

Firefox has already had tracking protection. Why do we need Facebook Container?

Hello Ng Zi Le,

Facebook Container is enhanced tracking protection; you don't have to use either one; that's totally up to you.

See : https://blog.mozilla.org/blog/2019/06/04/firefox-now-available-with-enhanced-tracking-protection-by-default/

But if Facebook Like and Share buttons are trackers, Firefox will block them, right? If I have already selected strict content blocking, why do I need Facebook Container? What will be different to Facebook if I extra install Facebook Container?

Hi Ng Zi Le,

To build on what McCoy said, Facebook Container is a more in-depth blocker just for Facebook. It is meant to isolate all of your activity on Facebook while still preserving functionality.

All of your activity will stay within a "container" in Firefox, as denoted by a blue line across the bottom of the tab. Any Facebook links that you click will be loaded within this container, but any non-Facebook related links will be loaded outside of the container and will not have the same content blocking.

This means that you could still use the Like and Share buttons, but this content will then be loaded in the isolated Facebook container. Please note that Facebook will still receive information on what website you shared from if you choose to use these buttons.

Take a look at the blog post on Facebook Container, as well as the description for the add-on itself for more details on how it works:

Facebook Container Blog Post Facebook Container Add-on Page

Facebook Container is a specific blocker/container just for facebook content, while the default Firefox blocker is a more general blocker.

I hope that this helps further explain!

In addition to Brady Allison's excellent post :

Some people (like me) will use the "Standard" version of Content Blocking, for different reasons, but one being the fact that stronger tracking protection might break some sites.

Standard blocking only works in private windows, which people who are on Facebook, will hardly use.

Those who use the standard content blocking version and have a Facebook account, might want to use Facebook Container.

Facebook container extension opens Facebook in a special container to prevent interaction with other tabs and make it impossible that a malicious script can access other tabs. This has nothing to do with content blocking as that is a separate feature. Containers isolate tabs and content blocking blocks content from other sources.