If you get a pop-up message asking to update Firefox or plugins or scanning for malware then such a message is likely a scam and you should never respond to such an alert to avoid getting infected with malware.

• Only update Firefox via "Help > About" or by downloading and installing Firefox from the Mozilla server and never via a pop-up or link on a web page.
• Plugins should only be updated via the plugin itself or by visiting the home page of the plugin.

If you have downloaded and started this file then you may have been infected with malware.

• https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

mago09 said

screen popped up about a foxfire security patch for browser(windows8) - norton warned me on it when i tried to download it - according to site on google, this outfit (ziejaweleda.org/) has done same thing for adobe flash. have attached screenshot of website address shown on download -nothing came up on website?!?

The spelling is Firefox and not Foxfire so if the website was using foxfire name then it should be obvious it was fake. Unless the foxfire is a typo on your end. The ziejaweleda site does not load for me nor does a search for site and Firefox come up with much.

Also you posted no screenshot.

think foxfire was my typo, but who knows - that's what i have always called it - great browser! i did the two suggested downloads and ran them - AdwCleaner and MS safety scanner - they came up with some files they either fixed or deleted - but now the browser is hanging to the point that i had to turn off computer twice in last hour...