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localDatastoreFormat=firebird
Since 2015.02 this line is no longer needed, firebird is the default local datastore format.
to the global.properties file in the root directory of you configuration.
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http://publicwiki.deltares.nl/display/FEWSDOC/global.properties+file
Known issue
As a user without administration rights Firebird sometimes will fail due to a missing security right. In this case you will see messages like "Error creating database connection". To solve this problem follow the next steps:
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* add the group "Everyone" to this security right.
Now it will work.