Generally this error occurs when virus protection is turned on or may be temporary file are creating errors and it may be file corruption which leads to safari network error 303 on mac. To fix this error initially user has to check that the internet is working and the connection to wifi or internet network is done.
Without web browser you are not able to access the internet and when you are facing an error code in web browser read steps in the blog carefully. You can also look for safari support as you face issue with your web browser in Mac you can read our post to get Apple Mac Safari Support. Read steps mentioned below to troubleshoot safari browser error code 303.
Steps to Fix Safari Network Error 303 on Mac:
Step1: Open preferences in safari and click on advanced.
Step2: Enable the develop menu and look options in it to clear cache. Now, close safari restart and check if error occurs go to step3.
Step3: In safari open history and clear history from the beginning and clear all cookies too. Quit safari and check if problem solved.
Step4: Now open finder and search for user/home folder. In this folder make visible all the folders in it by checking options and delete Library/Caches/com.apple.Safari/Cache.db.
Step5: Now go to safari and search for preferences/extension put all extensions to off mode.
Step6: Try to reset safari if after step 5 unable to fix the issue.
Call Apple Support Number 1-877-232-0717 to Fix Safari Browser Error 303
After following all the steps given above if safari browser error code 303 is not getting resolved you can call an expert. You can call Apple support phone number to get in touch with technical expert and get online help to fix the browser problem. Our team of certified tech professionals is here to fix and work for the Apple safari browser in Mac computers problems with right approach.