From your Safari menu bar click Safari / Preferences then select the Extensions tab.
Plugins can be installed there. You can turn Extensions off or select the Extension then click Unintsall.
If you don't have any Extensions installed, follow the instructions at this link where you see: *Manually uninstall third party add-ons.*
Unsupported third-party add-ons may cause Safari to unexpectedly quit or have performance issues
Do you remember the name of the plugin?
Message was edited by: Carolyn Samit
Re: How do I uninstall plugins for Safari?
Feb 2, 2014 10:15 PM (in response to Geordie)
hi I can't open my Safari it has an error "Safari quit unexpectedly while using the librooksbas.dylib plug in" I have OS X mavericks installed and when I add internet plug ins like amazon,ebay, etc. Now I can't open it.