Mozilla unblocks Microsoft Firefox plug-in

The plug-in blocked last week by Firefox has now been removed from Mozilla's block list.

Mozilla logo

Mozilla has changed its mind and decided not to completely block a Microsoft .Net plugin for Firefox, as the security scare ended in confusion.

Firefox was returning a message that the Microsoft.Net Framework Assistant add-on was "unstable or insecure."

The add-on is already a bone-of-contention among Firefox users, who found it had been installed automatically via Windows Update back in June. To make matters worse it could only be uninstalled by editing the registry, a tricky proposition for many.

Advertisement - Article continues below

Last week, Microsoft announced the software contained a critical vulnerability that could allow users to hijack a PC. In reaction, Mozilla took the decision to add the software to its block list - used to prevent high-risk software being installed in Firefox.

"Because of the difficulties some users have had entirely removing the add-on, and because of the severity of the risk it represents if not disabled, we contacted Microsoft today to indicate that we were looking to disable the extension and plug-in for all users via our blocklisting mechanism," said Mozilla's head of engineering, Mike Shaver, in a blog post.

However, come Sunday Mozilla had yanked the add-on from the block list, after Microsoft confirmed that it couldn't be exploited.

Advertisement
Advertisement - Article continues below

"We received confirmation from Microsoft this evening that the Framework Assistant add-on is not a mechanism for exploiting the vulnerabilities detailed in the earlier post, so we've removed it from the blocklist," notes Shaver. "As the blocklist update propagates to clients, the add-on should be re-enabled for users who had it previously enabled."

Unfortunately, Framework Assistant is only one part of the update, and the Windows Presentation Foundation plug-in remains blocked, with Shaver tweeting "this one is much more critical".

Firefox Microsoft plug-in
Featured Resources

The case for a marketing content hub

Transform your digital marketing to deliver customer expectations

Download now

Fast, flexible and compliant e-signatures for global businesses

Be at the forefront of digital transformation with electronic signatures

Download now

Why CEOS should care about the move to SAP S/4HANA

And how they can accelerate business value

Download now

IT faces new security challenges in the wake of COVID-19

Beat the crisis by learning how to secure your network

Download now
Advertisement

Recommended

Visit/security/encryption/355820/k2view-innovates-in-data-management-with-new-encryption-patent
encryption

K2View innovates in data management with new encryption patent

28 May 2020
Visit/software/video-conferencing/355410/zoom-50-adds-256-bit-encryption-and-ui-refresh
video conferencing

Zoom 5.0 adds 256-bit encryption to address security concerns

23 Apr 2020
Visit/security/hacking/355382/whatsapps-flaw-shoulder-surfing
hacking

WhatsApp flaw leaves users open to 'shoulder surfing' attacks

21 Apr 2020
Visit/security/cyber-security/355368/microsoft-builds-ai-to-detect-security-flaws-with-99-accuracy
cyber security

Microsoft AI can detect security flaws with 99% accuracy

20 Apr 2020

Most Popular

Visit/server-storage/network-attached-storage-nas/355849/western-digital-sneaked-inferior-smr-tech-into
network attached storage (NAS)

Western Digital accused of sneaking inferior SMR tech into NAS drives

1 Jun 2020
Visit/security/data-breaches/355777/easyjet-faces-class-action-lawsuit-over-data-breach
data breaches

EasyJet faces class-action lawsuit over data breach

26 May 2020
Visit/operating-systems/microsoft-windows/355812/microsoft-warns-against-installing-windows-10-may-2020
Microsoft Windows

Microsoft warns users not to install Windows 10's May update

28 May 2020