In Jainism, yajna/homa/havan (Vedic fire sacrifices) are not considered essential or central to spiritual progress. The path is based on nonviolence (ahimsa), truth (satya), renunciation, self-discipline, and ethical conduct, rather than performing animal or fire sacrifices for punya or moksha.

Key points:

• Jain teaching emphasizes inner yajna: self-purification through right conduct, self-control, tapasya, fasting, and compassion for all living beings.
• Fire sacrifices as a ritual offering to gods are not part of the Jain spiritual program. They are seen as external rituals that do not directly purify the soul in the Jain sense.
• There is variation between Digambara and Śvetāmbara traditions in ritual emphasis. Both traditions focus on innerpurification and the teachings of the Tirthankaras; formal Vedic havan is not a required or defining practice in Jainism for liberation.

Core idea in Jain sources is that true yajna is the discipline of the mind and actions—ahimsa, aparigraha (non-attachment), and the right understanding of reality—rather than external fire rites.

If you want, I can share a concise Jain perspective from authentic sources in more detail.