Re: how to temporarily turn off firewall to allow download of Adobe
Firefox is a browser, not a firewall. Follow the instructions below.
There are 2 versions of Adobe Flash:
an ActiveX version for IE only
a Plugin version for most other browsers including Firefox
On a Windows system, you should always update both individually.
You do not appear to have the Plugin version for Firefox installed. If you did, in Add-ons > Plugins you would see "Shockwave Flash (version)". If "Shockwave Flash" is there and is disabled, click the "Enable" button.
only the most popular/used Plugins are known by this page
page will detect only installed, enabled Plugins
Install or update Adobe Flash
Using Firefox, go to the following link and SAVE the download to your desktop so you can find it later. Un-check any items on that page that you do not want to download (i.e., "McAfee Security Scan Plus":