ia32-lib-firefox does not exist, package manager broken
 

Swiftweasle32 depends on ia32-lib-firefox, but that package does not exist. Synaptic and apt say that they are broken. Swiftweasle32 works just fine without that package that does not exist in the repositories. How can I get the package manager not to complain about a missing package that does not exist and still keep Swiftweasle?