This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How does Firefox stop PUP's (potentially unwanted programs)?

  • 2 replies
  • 1 has this problem
  • 11 views
  • Last reply by FredMcD

more options

I keep getting a pop-up ad for McAfee security which McAfee says isn't their doing. I've scoured my computer files but can find nothing that might be causing it. I've also deleted all programs which it might be hiding under still no luck. It won't allow a screenshot to be taken of it either (like some sort of ghost) This thing pops up all the time preventing me from continuing yet it slips past all my security.

I keep getting a pop-up ad for McAfee security which McAfee says isn't their doing. I've scoured my computer files but can find nothing that might be causing it. I've also deleted all programs which it might be hiding under still no luck. It won't allow a screenshot to be taken of it either (like some sort of ghost) This thing pops up all the time preventing me from continuing yet it slips past all my security.

All Replies (2)

more options

Step 1:
You may have ad/mal-ware. Further information can be found in this article;
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

more options

Step 2:
Go to the Mozilla Add-ons Web Page {web Link}
(There’s a lot of good stuff here) and search for a good ad blocker.