Prior to updating to Mac OS Sierra, I was able to use Safari as my default browser flawlessly. My default for opening a new window or Tab was Top Sites. Since the update to Sierra, the Safari browser only defaults to Favorites. Seems lime this incompatibility should have been detected by the gazillion Beta testers before release.
MacBook Air, Mac OS X (10.7.3), Windows 7 through Parallels
Check the settings in Safari/Preferences/General to make sure Open new windows with and Open new tabs with is set to Top Sites. Also make sure Favorites isn't set as your Home Page.
These are currently set to open in Top Sites. Still does not work.
Might be a corrupt .plist.
Do a backup, preferably 2 backups on 2 separate drives.
Quit the application.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.Safari.plist. Move the .plist to your desktop.
Restart the computer, open the application, and test. If it works okay, delete the plist from the desktop.
If the application is the same, return the .plist to where you got it from, overwriting the newer one.
Thanks to leonie for some information contained in this.
Safari - Preferences - General - New Windows / New Tabs Open With - Select 'Top Sites' from drop down menu
After Mac OS Sierra update, Safari Top Sites no Longer opens.
