Random Pop Ups

I've suddenly begun getting random pop ups on fedex,com, ebay.com and amazon.com. They are only related to the site itself. I use PCManager and have whatever their popup blocker is and I'm still getting them. Any ideas ? Thanks in advance.

Let me add a clarification - the entire screen changes with no keyboard or mouse activity. It takes me to a different part of the site itself.

Delete temporary internet files also use AdwCleaner and scan your computer for malware infections.

What browser are you using? (ie) Chrome, Edge, Firefox etc? Have you tried a different Browser?
You can also go into the Browsers extensions and remove any Extensions you do no use or are aware of.
You can also Reset the Browser to Defaults, removing any malware attached to the browser.
And as stated, run ADWCleaner followed by Malwarebytes.

Using Chrome. I ran ADWCleaner and there was nothing. I"ll call these "redirects" and they don't originate from an extensiosn - they are organic to the individual web site and are another page in the web site.

Did you scan with Malwarebytes?
Did you try another browser?
Setting Chrome to Defaults will eliminate the pop ups Reset Chrome settings to default - Google Chrome Help

Malware picked up 9 issues. I quarantined them and see what happens. Thanks !

If they don't stop i can have you run a scan with a different program & it will tell me if there are any bad things causing the pop-ups !

I apologize to the Chrome fan boys, because I have had to put Chrome on my Never More list.
I've removed it from so many of my customer's PC's, where it was trying to take over, and my customer didn't know what it was or how they got it.
That's the MO of a Virus, not a browser.

That's just personal experience, not an opinion. So, I would suggest, that at least for now, UN-Install Chrome from your PC, and see if your problems cease. If they do (cease) then you know where the problem was.
If not, then go ahead and re-install Chrome.

Good Luck,
TM

I'd give it a try but it sync's with iCloud efficiently and I run a Chromecast with it.

@idainc, if you were referring to my program i was talking about ! If the reports are to big to post here then zip it up & let me know where i can read it ! It is very important it must be installed on your desk top !!

FARBAR (FRST)
Download Farbar Recover Scan Tool for 64 bit systems <<<< Downloading Farbar Recovery Scan Tool >>> and save it to your Desktop. <<< Important
If your computer language is other than English right click on the FRST64 icon and rename it to FRST64english
* Right click on the icon and select Run as administrator
* Note: If you receive any warning about the download it is a false positive and you can ignore it. Click on More info to get the Run anyway option
* Click Yes to the disclaimer
* Click Scan and allow the program to run
* Click OK on the Scan complete screen, then OK on the Addition.txt pop up screen

2 Notepad documents should now be open on your desktop.
Please copy and paste the contents of each report in separate reply windows