If Safari is slow, stops responding, quits unexpectedly, or has other issues
The issue could be caused by a Safari Extension, Internet plug-in, or other add-on.
Safari Extensions, Internet plug-ins, and other add-ons are designed to enhance or customize the browsing experience. Add-ons are widely available on the Internet, and some are installed as part of an app or other software. If you have add-ons installed, an add-on could be causing the issue.
If the issue is unwanted pop-up windows, ads, and graphics while surfing the web, learn how to remove ad-injection software (adware) from your Mac.