If you want to do browsing but don't want another family member to make your use logout from websites so they can login, than definitely you need a separate profile so you don't have to re-login every time.
You have to Just -
1. Add a new chrome link to panel, because we are going to modify it.
2. Now, right-click on that icon and select property option and you will get this type of window.
2. Now, right-click on that icon and select property option and you will get this type of window.
3. Paste line given below at the end in command section (area) :
--user-data-dir=/home/username/.config/google-chrome/newProfile
before pasting this line change "username" with you ubuntu account (username)
after pasting line in the command section, it should be something like this
/opt/google/chrome/google-chrome --user-data-dir=/home/username/.config/google-chrome/newProfileNow click on close and than click on that link you modified and select your default search engine you want to use.