libebook1.2-9, libedataserverui1.2-8 and firefox depend on libnspr4, so basically you cannot do any development using libnspr4-dev and libxul-dev in edgy (same with libnss3 and libnss3-dev).
Proposed solution for edgy+1: build firefox using the xulrunner -dev packages
Proposed solution for edgy: change the sonames for the libraries in libnspr4 and libnss3 from *.so to *.so.0ff
Setting the milestone to 6.10. libnspr4 (firefox) uses unversioned sonames, and conflicts with libnspr4-dev:
/usr/lib/ libnspr4. so libplds4. so
/usr/lib/libplc4.so
/usr/lib/
libebook1.2-9, libedataserveru i1.2-8 and firefox depend on libnspr4, so basically you cannot do any development using libnspr4-dev and libxul-dev in edgy (same with libnss3 and libnss3-dev).
Proposed solution for edgy+1: build firefox using the xulrunner -dev packages
Proposed solution for edgy: change the sonames for the libraries in libnspr4 and libnss3 from *.so to *.so.0ff