OK so I get a "legacy extension message" but how do I find out which extension it is?
MacBook Pro 13″, macOS 10.15
The alert should mention the app/developer: https://support.apple.com/en-us/HT210999
Maybe looking in About This Mac -> System Information -> Software -> Extension gives you a clue.
The alert should mention the app/developer: https://support.apple.com/en-us/HT210999
Maybe looking in About This Mac -> System Information -> Software -> Extension gives you a clue.
TichGilbert wrote:
I have already uninstalled all my 32 bit apps using CleanMyMac X so my guess is it must be a browser extension.....?
No, it's not a browser extension. It's a kext file.
See: About legacy system extensions - Apple Support
FWIW, you should uninstall CleanMyMac X. It's considered "junkware" among other less pleasant names by experienced users. It's known to cause various problems.
Guess I didn't notice it so will I have to wait until the OS randomly decides to warn me on start-up or can I force a check to actually find out now?
I have already uninstalled all my 32 bit apps using CleanMyMac X so my guess is it must be a browser extension.....?
Not in my case - this just pops up every now and then.... I guess I'll wait for the next time.
Thanks for the tip about looking in the About My Mac System Report. It didn't help this time but the detailed info looks really useful :o).
It usually appears on every startup.
"legacy extension message"
