safari crashes

Try this.

With Safari completely Closed.

Hold the SHIFT key and Launch Safari from the Applications' Folder

This is a Safe Launch

Still issues -->>

1 - Restart in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal.

2 - Does the issue present in this mode ?

There could be something in the main User Account playing up. To further isolate this - Set up users, guests, and groups on Mac. Then log out of the Main User account and log into the dummy account and test again if the issue persists.

1 - If the issue is present in the dummy account - then, this appears to be a System Wide issue on the computer.

2 - Download the Application Etrecheck directly from the Developer.

The application is free or paid from added features. 

It will take a Snap Shot -  both the hardware and software.

 The Report will Not Reveal Any Personal Information. 

Post back the Full Report - copy and paste - >>>> using the Additional Text Icon ( 3rd Icon to last ) <<<<

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

The possible reasons for Safari keep crashing on mac are:

1. Corrupted Safari extensions

2. Outdated macOS software

3. Too many open tabs

4. Physical RAM failure

5. Too much Junk/Cache

However, to fix the issue you can try the below methods:

1. Check for updates

2. Check Safari extensions

3. Clear Safari Junk/Cache

4. Check the Activity Monitor

5. Completely reset Safari

Hope it helps!