Latest Avast Secure Browser 147 user agents:

User Agent Platform Device
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Avast/147.0.0.0 Mozilla/5.0 (SAMSUNG; SAMSUNG-GT-S5380D/S5380DXXLB1; U; Bada/2.0; it-it) AppleWebKit/534.20 (KHTML, like Gecko) Dolfin/3.0 Mobile HVGA SMM-MMS/1.2.0 OPN-B Windows 10 Wave Y
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Avast/147.0.0.0 Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36 Mozilla/5.0 (SAMSUNG; SAMSUNG-GT-S5380K/S5380KDDLD1; U; Bada/2.0; en-us) AppleWebKit/534.20 (KHTML, like Gecko) Dolfin/3.0 Mobile HVGA SMM-MMS/1.2.0 OPN-B Windows 10 Wave Y
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Avast/147.0.0.0 Windows 10 Unknown