For months, I’ve pondered a pesky problem: at random, the address bar (also called the “Toolbar”) in Safari for Mac would disappear. I could bring it back by selecting View/Show Toolbar, but a day or so later my Toolbar would vanish again.
The culprit is a program called Spice Rack from a company called TastyApps.com. In theory, Spice Rack installs plug-ins that enhance the browsing experience, but the Safari plug-in — which creates a Web Snapper button on the Safari Toolbar — is buggy, causing the toolbar to randomly disappear.
The creator of Spice Rack admits as much in this obscure Apple discussion forum thread, but the information is buried on page two of the lengthy discussion about the problem, and the problem (though a solution was posted back in May 2010) hasn’t been marked as solved.
To fix the problem:
1) Go to Safari/Preferences, go to the Extensions tab, and turn Extensions off. (Alternatively, you can delete any reference to Spice Rack or Web Snapper.)
2) Go to System Preferences, right click Spice Rack, and remove it.
There: all better.