- There are too many tabs open.
- There is an excessive amount of cache, downloads, and history logs that haven't been cleaned in a long time.
- Safari is crashing or freezing due to an extension, plugin, or webpage you're visiting.
- Safari has become obsolete.
- An older version of macOS is available.
to fix them follow this method
Keep an eye on update
Apple publishes Safari updates on a regular basis to address any bugs that may arise. Many problems can be avoided by updating your software on a regular basis. So, if you're having trouble with Safari, it's possible that you neglected to upgrade it to a newer version. Select About Safari from the Safari menu. Your current Safari version will be displayed in the pop-up window. Because Safari upgrades occur with new macOS releases, it's recommended to double-check that your Mac is up to date.
- Select Apple from the drop-down option.
- Choose About This Mac from the menu.
- Click Software Update in the pop-up box that displays.
- If you haven't done so already, upgrade your macOS.