Mozilla Firefox browser extension not recognized by F-Secure SAFE

igloija · August 2020

Hello, I have installed F-Secure SAFE and its Mozilla Firefox browser extension too, which seems to work (the http://unsafe.fstestdomain.com/ URL gets blocked). However, when I open F-Secure SAFE, in the main page it says that the Mozilla Firefox browser extension is not in use. I have the latest Firefox, version 79.0.

Jaims · September 2020

Hi @igloija

Please check that your F-Secure SAFE is fully up-to-date. First run pending Windows Update, restart PC and click on Check for Updates from the Tools tab of your F-Secure SAFE. That should work but if it fails;

Open your F-Secure program

Click Settings

Pick Browsing Protection

Choose Reinstall Extensions for Firefox at the bottom

Close Firefox and start again. You should get a notification regarding Browsing Protection by F-Secure

nanonyme · August 2020

Hey,

I would suggest also testing https://unsafe.fstestdomain.com/ (as in, same site but with HTTPS) to ensure that the extension actually is working properly.

igloija · August 2020

Thanks for the tip @nanonyme , the HTTPS version is also getting blocked, so it seems the extension is working fine, banking protection also seems to work fine, but F-Secure still says that the extension is not in use.

Mozilla Firefox browser extension not recognized by F-Secure SAFE

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