> Could you be so kind to give me some hint (or suggest where to search for) for both develop dialect

If TopLink is open-source (I really do not know - did not track that
product), then you can check the sources. Otherwise decompile a class
and create similar one. In Hibernate dialects extend some base class and
then override some methods. I would expect something similar in TopLink.

> or install/configure Hibernate ?

See here:

https://www.hibernate.org/5.html

The "Hibernate Core for Java" part explains the XML configuration only
and the core technology, "Hibernate Annotations" and "Hibernate
EntityManager" - the new JPA architecture.

There is nothing really special about Firebird in Hibernate. You specify
the driver class, jdbc url and dialect (it is called
org.hibernate.dialect.FirebirdDialect )

Roman