[Trisquel-users] Re : usb wifi dongle

[magicbanana]

It is probable that you Wifi adapter requires some non-free driver and/or  
firmware. If it is what is on the disk, then you do not want to install it  
(unless you do not value your freedoms)! You can try to install the latest  
Linux-libre kernel and see if the adapter magically works:  
https://trisquel.info/en/wiki/update-linux-libre-kernel