Software :: Safari Extensions - Close All Inactive Tabs

I've created an extension for Safari which does exactly what you want. It closes all the tabs except for the tab that is currently active. As a side effect you can also change a setting which when enabled will on pressing the button ask you if you really want that (to prevent accidental button presses). You can find the extension on the extensions page of Safari.

I will be adding functionality soon: Context menu options will be added so that you can create a white list of websites that you don't want to have closed upon clicking the Close All Tabs button. This can be convenient if you, just like me, have a number of tabs open with websites you never close. For example, I always have my GMail open and another page I am working on. All the other tabs can in most cases be closed all at once at some point, however I don't want it to close my GMail and currently active tab.