Hi This sounds like an issue that you may wish to speak to the support team at PortableApps about. They "package" the software and should be able to help you with an installation question. I notices that you are using an old version of Firefox. I strongly recommend that you update to make sure you have the latest security and stability fixes. You can read more about how to update [https://support.mozilla.org/en-US/kb/update-firefox-latest-version here].