https://www.bing.com/search?q=startupCache.4.Little&pc=MOZI The file STARTUPCACHE.4.LITTLE is identified as the Trojan Program

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

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

Thanks for the response but there seems to be doubt as to whether this is a Trojan, see copy of a previous post below. I have run 3 separate virus detection programs Karspersky, Malwarebytes and Windows defender none of which returned any indications of a problem.

THIS IS THE PREVIOUS POST:-

'I inadvertently downloaded a virus while trying to install a flv player. I uninstalled firefox and reinstalled it. I have a folder in my profiles called fajuybvp.default and in this is a file called startupCache.4.little which, when googled, is flagged as the virus that collects banking details. Can you please verify if this is a genuine firefox file please regards

Terry Gillbe Chosen solution

hello, it is a legitimate file created by firefox when it is located in %localappdata%\Mozilla\Firefox\Profiles\XXXXXXXX.default\startupCache.

if you suspect you're having issues with malware, run a full scan of your system with the security software already in place and different tools like the free version of malwarebytes, adwcleaner and microsoft safety scanner.

Troubleshoot Firefox issues caused by malware

I don't know that file. I found thru a web search that it is a trojan. Please note: Many bad programs will hide themselves by using the names of good programs.

OK will keep you posted when I get a resolution