I am on a Mac running OSX 10.7.5
I use Safari 6.1.6 and Firefox 34.0.5
While running an app on the www I was told the app would not function because I needed to update the Flash player.
I tried and receive an unsuccessful install message. I then followed all of the various instructions for an install several times with the same
result. I disabled all Ghostery and other blocking and tried again and it still failed. I then downloaded the uninstaller and uninstalled the
flash player. It still failed. I now have not even a dated flash player and nothing I can do to get a flash player.
I've moved your question from InDesign to the Installing Flash Player forum...