If you have trouble browsing the web, try the suggestions listed below.
Webpages won’t appear
Check your Internet connection.
Try working in another app that uses the Internet, such as Mail.
Make sure cables are connected, and that your network devices (such as a router) are turned on.
To diagnose connection problems, use Network Diagnostics.
Problems opening webpages
If your computer is connected to the Internet but you still have problems, wait a few minutes, then try again to view the webpage.
For more help, see:
Webpages are garbled or hard to read
If webpages appear garbled or incomplete, or the text on them is too small, you may need to change Safari preferences. For more help, see:
If features on a webpage don’t work
Searches aren’t effective
If your web searches aren’t finding what you want, you can improve your search results with the right search terms.
AutoFill doesn’t work
The Safari AutoFill feature remembers information you use to fill in forms on webpages. If AutoFill doesn’t work, you may need to change AutoFill options in Safari preferences.
Problems downloading files
Click the Show Downloads button 
to see the status of items being downloaded.
If the download is paused, click the Resume button 
next to the file in the list.
To reveal a downloaded file in the Finder, click the magnifying glass 
to the right of its name in the downloads list.
For solutions to other downloading problems, see If Safari can’t download an item from the web.
Problems with plug-ins
If a webpage has trouble showing plug-in content such as video, you may see a placeholder with a button that describes a plug-in problem. For example, the plug-in might be old, missing, or blocked.
Try clicking the placeholder button to resolve the problem.
For more information, see If a plug-in is missing and If a website has plug-in content.