You can add the bookmarklet by right-clicking it and selecting ‘Bookmark This Link/Add to Favorites’. On a Mac you can drag and drop ‘TinEye Images’ into your bookmark toolbar so it will appear as below.
Users with browsers like Opera, Safari (including Safari on the iPhone) which do not support our browser plugin.
A bookmarklet is a cross between a browser bookmark and a line of javascript code. Unlike browser plugins, a bookmarklet works in any javascript-enabled browser.
When you click a bookmarklet, instead of taking you to a bookmarked page, an action is performed on the page you’re currently viewing. A common usage for bookmarklets is to submit interesting pages to social bookmarking sites.