i reinstall my avast and my safezone browser was gone

i don’t know how or why this happen, but i was mandatory to use chrome again ;[ have some solution for that?

Please (re)search before posting.
It has been explained in other threads as well as in the FAQ.

See: https://forum.avast.com/index.php?topic=208329.0

See: https://forum.avast.com/index.php?topic=208329.0