I log on to Firefox download page, click on download application, click on accept agreement and a warning window comes up:accept downloads from trusted sites, I click OK proceed. A Firefox window comes up: download will begin after you restart your Firefox, click on restart button --

and the cycle starts again, does not load.

Is there a way around this? I have restarted computer to make sure Firefox was closed and reopened.

Thanks in advance,
pf

If you restarted your Firefox after it asked to do so, you do not need to download and install the Firefox add-on again.
You can use it now.
You can also verify that add-on is installed by clicking "Tools" - "Add-ons" menu.

Many thanks for your help,

You were right it is there.

pf