Thank you - I can do that AFTER I stop V.29 from installing but until then, based on what happened t

Thank you - I can do that AFTER I stop V.29 from installing but until then, based on what happened the last couple of times, I can't open Firefox or it will automatically.

I desperately need the answer to my second question - how to stop the download and install of V.29. When I was last in Firefox on May 10th when I posted this question, it was downloading. I closed Firefox in hopes that it would stop the download. I want to go back in to Firefox rather than switch to IE or Chrome but won't open it until I know I can stop the install.