Mozilla Firefox Version 57 Released with Security Updates

[Corrine]

Mozilla sent Firefox Version 57.0 to the release channel today. The update includes four (4) security updates, 1 Critical, 1 High, 1 Moderate and 1 Low.

 

As of this posting, Firefox ESR remains at version 52.4.0. Update: Firefox ESR version 52.5 has been released.

 

With this release, "legacy" add-ons (XUL-based) will no longer function. This update changes the add-ons system to the WebExtensions API. The Mozilla Add-ons portal will list only WebExtensions-compatible add-ons by default. Legacy Extensions are listed separately located under Tools > Add-ons. From there click "Find a Replacement"and check the three pages of available extensions.

 

In addition, this update introduces the new Quantum engine (Firefox Quantum) which is replacing parts of parts of the familiar old Gecko engine.

 

Security Updates

Mozilla Firefox Release Notes

[crp]

whoa, just restarted after installing the update to FF57. It is MUCH faster, i need to check if my extensions are still loaded.

text has been better looking, photos - depends: if low resolution (less than 200) they look worse , higher resolution looks very good.

[Dr. J]

Odd thing I noticed when installing the stable version through the Ubuntu repos after using the beta version for a while, is that the Ubuntu modifications add-on is still installed as a dependency (or recommended package), even though it's a legacy extension and no longer gets loaded.

 

And yes... I love this browser again... This is a major improvement!

[Peachy]

Firefox Quantum is awesome. I was pleasantly surprised when I got the update on Tuesday. I went around and starting updating every physical computer and virtual machine I had.

[Corrine]

Mozilla sent Firefox Version 57.0.1 to the release channel.

 

Mozilla Firefox Release Notes

[Corrine]

Update: The information wasn't available earlier but the update included one critical and two high security updates.

 

Security vulnerabilities fixed in Firefox 57.0.1

[Corrine]

Mozilla sent yet another update for Firefox Version 57 to the release channel, Version 57.0.2.

 

Fixed

• Block old versions of G Data Endpoint Security for crashing Firefox on start up - Windows only (bug 1421991)
  
• Fix a regression with WebGL and D3D9 - Windows only
  

Mozilla Firefox Release Notes

[Corrine]

Mozilla has released Firefox Version 57.0.3. Firefox ESR was updated to version 52.5.3.

 

Fixed: Fix a crash reporting issue that inadvertently sends background tab crash reports to Mozilla without user opt-in (bug 1427111)

 

Mozilla Firefox Release Notes

[Corrine]

Mozilla sent Firefox Version 57.0.4 to the release channel to address the "Meltdown" and "Spectre" timing attacks. As of this posting, the has not been an update released for Firefox ESR. The update includes one High security update and is discussed in the Mozilla Security Blog at Mitigations landing for new class of timing attack | Mozilla Security Blog.

 

Mozilla Firefox Release Notes

 

Edit Note: Update from Speculative execution side-channel attack ("Spectre") — Mozilla

SharedArrayBuffer is already disabled in Firefox 52 ESR.