Uninstall non-loaded extension from Safari When opening Safari I get this error:



Now I want to uninstall this extension, however it doesn't show up in the Extensions preferences:



How do I uninstall this?
That doesn't look like an extension, but a SIMBL Plugin.

These can be found in the directiory /Library/Application Support/SIMBL/Plugins, and you should be able to remove the SafariOmnibar.bundle from there.