First Download OS Forensic from here and install in your pc then open OSForensic and click on Create Case button to create a new forensic case.
Now enter the details such as Case Name, Investigator Name, Default Drive, and Acquisition Type To specify the case folder, click on browse & select the Location where you want to save your Evidence Report. Now click on ok.
Now it will show us the registered case in this tool. Now to manage this case, click on Add Device option available in Manage Case.
Now select Image File option in Select Device to add option. Now assign the path of the folder where image file exists and also give the Display Name which is compulsory. Click on OK Button.
Now to get the saved browser password clicks on Find Browser Passwords Option and selects the Scan Drive option and then click on Retrieve Password. It will show you all saved passwords in RAW Image.