Honestly, proxies are hit or miss, but if you wanna unblock web browsers safely, try Psiphon. It’s free and works like a VPN/proxy hybrid. Used it at my old school and it got past most blocks.
Also, some sites use HTTPS filtering, so even if you bypass the firewall, the content might still be blocked. Try accessing the site’s IP directly (google "[site name] IP address") and see if that works.
Also, some sites use HTTPS filtering, so even if you bypass the firewall, the content might still be blocked. Try accessing the site’s IP directly (google "[site name] IP address") and see if that works.