Select the Safari drop down menu and select Preferences...
Select the Security tab.
Check the Allow Java option and then click Manage Website Settings. If the Allow Java option remains not active or is not present, then go to Step 7.
If isend.pb.com appears in the list make sure it is set to Allow. If you cannot find this entry, then go to Step 7.
Step 6 (Final)
Start Safari and resume using pbSmartPostage to print shipping labels and stamps.
Step 7 (Problem with Enabling)
Sometimes the plugin enabling process does not work. In this case you will have to reinstall the Java software. Click here to download and install Java.