macOS Safari disappearing extensions bug

Yesterday 3 web extensions disappeared from Safari Bitwarden, Goodlinks, and Wipr Extra. Weird? I emailed Bitwarden and Goodlinks support hoping to get an answer as to why and how to restore them.

Here’s the response and how to get them back:

This is posted in the Wipr FAQ:

Wipr Extra Is Missing

If you can see Wipr Part 1 2 and 3 in Safari’s Preferences under Extensions, but not Wipr Extra, you’re being bit by a bug. Safari can’t seem to reliably index Web Extensions like Wipr Extra.

Note that this affects all Web Extensions, not just Wipr, and there is absolutely nothing I can do about it. Please complain to Apple – the more people complain, the sooner they’ll fix this.

The following Terminal command has been reported to fix the issue (at least temporarily):

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -f -R /Applications/

I got a similar response from GoodLinks support in an email.

Hi Loren,

Could you try quitting Safari completely and running this command in Terminal?

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -f /Applications/

If it still not work, try restarting your Mac after running that command.

Thanks, Ngoc

I can confirm that the terminal command reinstated the missing extensions.