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User profile for user: Posey Rose
Posey Rose Author
User level: Level 1
4 points

Safari will not open - error notice 303

What can I do to open Safari when I have error message 303

MacBook Pro 15″, macOS 10.15

Posted on Apr 19, 2021 6:37 PM

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User profile for user: dominic23
dominic23
User level: Level 10
83,952 points

Posted on Apr 20, 2021 3:13 AM

Clear all website data

https://support.apple.com/guide/safari/manage-cookies-and-website-data-sfri11471/mac


Enable Develop menu, click Develop in the menu bar  and  then Empty Caches from the dropdown twice.

https://support.apple.com/guide/safari/use-the-developer-tools-in-the-develop-menu-sfri20948/mac


Related: If Safari doesn't open a webpage or isn’t working as expected

https://support.apple.com/en-us/HT204098

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User profile for user: dominic23
dominic23
User level: Level 10
83,952 points

Apr 20, 2021 3:13 AM in response to Posey Rose

Clear all website data

https://support.apple.com/guide/safari/manage-cookies-and-website-data-sfri11471/mac


Enable Develop menu, click Develop in the menu bar  and  then Empty Caches from the dropdown twice.

https://support.apple.com/guide/safari/use-the-developer-tools-in-the-develop-menu-sfri20948/mac


Related: If Safari doesn't open a webpage or isn’t working as expected

https://support.apple.com/en-us/HT204098

Reply

Safari will not open - error notice 303

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