Safari Extensions. Safe or unsafe?

ManagerCommand has recently put itself into my computer several times. I will be on YouTube or wherever through Safari, and it will close and reopen, opening the extensions page with ManagerCommand there after I had removed it previously. It will then close and reopen until I catch it while it’s not open to put the application in the trash and empty the trash. This has happened several times now and is very concerning, so I doubt that it is legitimate, for it would not be opening things on its own and closing applications I opened if it were.

I’ve had the same thing happen twice in the past week. The one today was called displayfraction and one was called extensionmanager. Both indicate they’re able to read things from the screen including user passwords! I’m concerned about how to get this to stop happening and what’s allowed it into my computer...!

I have no idea either.

That said, if you don't know what they are, it's best to remove them.

You can always reinstall them at a later date if you discover they are something you actually need.

Run the free version of Malwarebytes to see if malware is causing your issues.

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