If you could not activate a NUIA extension in your Firefox or the NUIA icon does not appear (see following figure), then you have to install the NUIA extension manually. Please check if your Firefox version is at least version 52. If not, update it to ensure a successful installation.

Active NUIA Extension in Firefox

1. Open your Windows Explorer and navigate to this folder: C:\Program Files (x86)\4tiitoo\NUIA\Addons\Firefox
( copy this path and paste it into the address bar of your explorer)

Explorer - NUIA extension .xpi file for manual installation

2. This folder should contain the file "nuia_browser_extension-fx-windows-signed.xpi". Open a new tab in Firefox and drag&drop this file there.

3. Now you should get a popup window to confirm the NUIA extension. Confirm the extension with "Add".

4. If everything went well, you should now be able to see a green NUIA icon in your Firefox like in the first picture.

If this solution did not help you, please do not hesitate to contact us.

Support Contact:

Mo-Fr: 9:00 am - 5:00 pm


Phone: +49 89 2000 128 - 30

E-Mail: support@4tiitoo.com