Unknown Apps running
I am running Firefox. When I open the Task Manager, it shows that there are 13 Apps listed for Firefox with 1 for Runtime Broker. I have only 2 tabs open. Task manager shows that all together the Firefox apps are using only 0.4% of CPU, but are using 521.3MB of memory. When moving around the different apps I am using, the non Firefox apps are running more slowly due to the amount of memory used by all these Firefox accounts. I want to know what are these apps and why are they there when I have only the 2 tabs open?
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Upravil(a) NoahSUMO dňa
Všetky odpovede (3)
Hi, could you switch to the "Details" tab in the Windows 10 Task Manager -- it lists the Process ID number.
Then, leaving that open, in Firefox, could you open the built-in Process Manager (Shift+Esc, or type/paste about:processes in the address bar and press Enter to open it).
These two lists should match, process for process, and you can see which processes are for which websites versus which are for other aspects of the browser. Maybe particular processes are using more memory than expected?
If the Windows Task Manager lists firefox.exe processes that are NOT listed on the about:processes page, then further investigation is needed because this sometimes indicates malware doing web stuff in an invisible window.
Thank you for your advice. I now know that I must have another problem. The detail page shows 14 entries for Firefox. The about:processes show only 2. There must be another problem. I just ran a scan yesterday.
That's strange. Usually there are more than 2.
The Windows Task Manager allows adding a Command Line column. The typical command lines are the one you use the start Firefox, like
"C:\Program Files\Mozilla Firefox\firefox.exe"
and then a bunch of related processes that look like
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=12345
followed by -childID or -parentBuildID
What would be suspicious is something like
"C:\Program Files\Mozilla Firefox\firefox.exe" -headless -P someprofile "https://example.com
in other words, a separate instance of Firefox running invisibly on some specified site.