MacPPC is a platform developed by Apple Inc. Among other things, on this platform are running browsers, applications and email clients. See below the software that is supported by MacPPC.

By the way, maybe you are looking for MacPPC user agents?

Browsers:

• Classilla
• Firefox
• iCab
• IE
• Mozilla
• Netscape
• OmniWeb
• Opera

Applications:

• Cyberdog
• iTunes

Email Clients:

• Lotus Notes