Customize User's Profile page in Confluence like changing the label Full Name to User's Full Name or change the Phone to Mobile Phone. Please refer to the following screenshot for reference:

既定	最終変更日

Steps to modify User's Profile page

1. Confluence をシャットダウンします。
2. Go to <Confluence-Insall>/confluence/WEB-INF
3. Find confluence-5.9.6.jar and unjar it to a temporary location. You may refer on the documentation How to edit JAR files in Confluence JAR files for more detailed information
4. Go to the extracted jar file  and go to the directory confluence-5.9.6 /com/atlassian/confluence/core/
5. Locate and edit ConfluenceActionSupport.properties

6. Find the following line and edit as shown in the screenshot

   fullname.name=Name  change to fullname.name=User's Full Name
   confluence.user.profile.phone=Phone change to confluence.user.profile.phone=Mobile Phone
   
   

7. Save the file
8. Copy ConfluenceActionSupport.properties and paste it to <Confluence-install>confluence/WEB-INF/classes/com/atlassian/confluence/core . Note that  the structure of the directory from the JAR file should be the same directory to where you paste the file and create the directory if doesn't exist.
9. Confluence を再起動します。