@zalex108 said in Network Synchronization Error with Proxy Server:
I've seen this URL's adding Bookmarks on a Sync'd profile.
Thank you again for help, solve my problem. Please when you have a time visit my blog, I talk of Opera and how migrate of firefox or chrome to Opera!
https://rezenhando.wordpress.com/2018/06/12/como-migrar-do-chrome-ou-firefox-para-o-navegador-opera/