Can I run Classilla on a 68K Macintosh?
Not natively. Classilla is currently built with a version of CodeWarrior that only supports PowerPC, and relies on certain specific features of OS 8.5 and later such as Unicode support. It is possible to backport these features to OS 8.1 or possibly earlier, but that task is demonstrably non-trivial, and the memory demands may seriously restrict which machines could run Classilla even if those constraints were otherwise met. However, if you have a 68K Mac with a PowerPC card such as any of the 601-based PDS cards out there, those Macs can run Classilla as long as you have sufficient memory and can boot 8.6 on them (the Sonnet PPC cards can with their enabler, for example). Please note that their performance will be, at best, pedestrian.
Not natively. Classilla is currently built with a version of CodeWarrior that only supports PowerPC, and relies on certain specific features of OS 8.5 and later such as Unicode support (see the next question). It is possible to backport these features to OS 8.1 or possibly earlier and/or adjust the portions of the browser that depend on them (again, see the next question for more), but that task is demonstrably non-trivial, and the memory demands may seriously restrict which machines could run Classilla even if those constraints were otherwise met. However, if you have a 68K Mac with a PowerPC card such as any of the 601-based PDS cards out there, those Macs can run Classilla as long as you have sufficient memory and can boot 8.6 on them (the Sonnet PPC cards can with their enabler, for example). Please note that their performance will be, at best, pedestrian.