How To Process This Steps:
1. adb backup -f org.mozilla.firefox.ab -noapk
org.mozilla.firefox
2. Device will ask if you want to backup data,
enter password and press backupdata.
it will create a file org.mozilla.firefox.ab, here .ab extension is for android backup.
3. java -jar abe.jar unpack org.mozilla.firefox.ab mozilla.tar 1234
here 1234 is password.
More steps:
1. Make sure you have installed Android SDK in your system which has ADB in it.
2. Download Android Backup Extractor (abe) utility in your system to extract and repack Android backups created with adb backup.
3. Connect your non-rooted android device with your system using USB cable.
4. In your Android device, go to settings >
Developer options. Turn On " developer options" and USB debugging"
5. Execute below command to make backup file of particular application
That's it Your'r Done