@jihan2011 I just figured it out on mac,
search for keychain access
find Opera Safe Storage
under access control allow all applications
open Chrome Safe Storage
under access control allow all applications
5.restart both browsers and log in
click your log in letter/account on the top right of opera browser
there should be first option sync syncronization
click sync, sync everything, choose chrome
Wallah!After that i wont go back and change those setting to not allow all applications just incase for safety so no sketchy applications get your password bank