Firefox can’t connect to the internet. The wifi signal is strong, the adapter is working. Other apps on the PC can connect and work fine except the Edge browser also can’t connect. I think some sort of malware has gotten in via email.. I uninstalled Firefox but when I try to install the latest version, I get a “can’t install for some reason” message. I turned off the firewall completely. Didn’t help. I would appreciate any suggestions as to what to do next.