But to use them you must enable the Debug menu in Safari. Open Safari preferences in the Safari Menu, click Advanced, and select Show Develop menu in menu bar.
What can you do with the new menu?
Other selections include:
- Open Page With, which lets you open the displayed webpage using a different web browser on your computer.
- User Agent lets you change how your web browser is identified by the web server. This is useful when a site is serving different pages or css to different browsers. Changing this does NOT emulate the browser, just fools web server into thinking that you are using some other browser.
- Show Web Inspector: The Web Inspector lists the assets associated with the webpage being displayed, such as documents, style sheets, and scripts. Clicking with the inspector on the page will highlight the code and assets for that element.
- Show Snippet Editor to quickly test small fragments of HTML without opening an entire webpage.
- Show Extension Builder a tool used by developers to package and provide metadata for extensions they create.
- Disable Caches causes Safari to retrieve a subresource from the web server each time the subresource is accessed, rather than using a cached copy.
- Disable Images Causes Safari to show the alternate content for images instead of the images themselves. Great for checking accessibility of images.
- Disable Styles shuts of all CSS styles.
- Disable Site-specific Hacks Shuts off special code that allows incompatible webpages to behave normally.