We’ve recently started integrating MongoDB more extensively into our systems at work and found ourselves wanting some basic monitoring during dev to see what the DB was doing. A friend suggested Mongo Live, which fit the bill but was only compatible with Chrome. Since I switch frequently between Safari and Chrome I decided to port it.
Fortunately the extension for Chrome required only minimal changes to get it working in Safari. The most significant change is that the Safari extension uses a toolbar button to activate. The fork is available on Github and supports Chrome and Safari. Hopefully someone finds it helpful!