Mozilla Firefox blocking Browsing Protection by F-Secure addon

mrxfsec · March 2022

I had the F-Secure addon (version 3.0.27) installed and today Mozilla blocked and disabled it, stating:

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"Browsing Protection by F-Secure has been blocked for your protection.

Why was it blocked?

This add-on violates Mozilla's Add-on Policies.

This add-on violates Mozilla's add-on policies by executing remote code and insufficient user data handling and protections.

What does this mean?

The problematic add-on or plugin will be automatically disabled and no longer usable.

When Mozilla becomes aware of add-ons, plugins, or other third-party software that seriously compromises Firefox security, stability, or performance and meets certain criteria, the software may be blocked from general use. For more information, please read this support article.

Versions blocked: 0 to 4.0.52.

Blocked on Mar 18, 2022.

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Is there a fix for this? I'm using SAFE ver 18.2

Jaims · March 2022

Hi @needsomeusername

We now have a formal response from our product team on the reason why the Browsing Protection feature was blocked by Mozilla.

https://community.f-secure.com/en/discussion/125056/browsing-protection-add-on-not-working-on-mozilla-firefox

Beecee · March 2022

I've got an update of the AddOn today in Firefox, it works fine now.

Check your AddOns section in Firefox, search for the F-Secure AddOn disabled, run the update and enable it. There is first a privacy consent popup that you need to agree to.

mrxfsec · March 2022

https://community.f-secure.com/en/discussion/comment/129286#Comment_129286

Thanks! Can confirm, it's working here after update to 4.1.11

needsomeusername · March 2022

happening again, version 0 to 4.0.52

radetzky · March 2022

You are right, I remember too

ruudvl · March 2022

Same over here...

MagDux · March 2022

Yes, same problem came up on my PC today.

F-Secure clients asks me to install the plugin, but Firefox blocks it.

Ronnie74 · March 2022

Yes, same problem here.... people of f-secure we need a fix asap please. firefox 98.0.1 wont allow install and blocks it

Beecee · March 2022

same here since today, March 18, 2022

The error message means, in English:

"Browsing Protection by F-Secure could not be installed because it poses a high risk to stability and security."

F-Secure clients asks me to install the plugin, but Firefox blocks it.

Flockle · March 2022

Wow hows this happen. Hope a fix is soon issued.

Jaims · March 2022

Hi @mrxfsec @needsomeusername @radetzky @ruudvl @MagDux @Ronnie74 @Beecee @Flockle

We are aware of this issue on the Windows version of our consumer and corporate EPP products.

We are currently working with Mozilla to solve this issue. Meanwhile, we recommend that you use either Microsoft Edge or Google Chrome browser until the issue has been fixed.

We already published a KB article about this issue and you can read more here https://community.f-secure.com/safe-en/kb/articles/9259

You can subscribe to our Status page to get notified on incident reports and when they get resolved.

https://status.f-secure.com/

Thanks for your patience and understanding.