After install Avast passwords on my
System Version: macOS 10.13.6 (17G2307)
Kernel Version: Darwin 17.7.0
Model Name: MacBook Pro
Model Identifier: MacBookPro15,2
Processor Name: Intel Core i7
Processor Speed: 2.7 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB