macOS GateKeeper --[no-]quarantine disabled

I was trying to update my LibreWolf browswer via Homebrew, which I was already well aware required a brew “–no-quaratine” switch to bypass macOS Gatekeeper, when I ran into this commandline response:

updating librewolf Calling the `--[no-]quarantine` switch is disabled! There is no replacement.

After some DDGing I found similar Homebrew issues on Github, and a news article about it:

Removing support for –no-quarantine for casks https://github.com/Homebrew/brew/issues/20755

The alternative is now running this command after installing via Homebrew:

xattr -d com.apple.quarantine /Applications/LibreWolf.app

Simple enough.

These instructions were updated on the LibreWolf website on the 29/01/2026

https://librewolf.net/docs/faq/#why-is-librewolf-marked-as-broken

https://github.com/Homebrew/brew/issues/20755

https://www.weaving.news/news/019a7a17-7132-71ef-bdf2-1ad29c64432b

https://librewolf.net/docs/faq/

https://codeberg.org/librewolf/website/commit/d34bb51af001f648600c57fff4813a811db30aad