freebl3.dll is the Mozilla NSS FreeBL is a shared library dependency to support security-enabled client programs, NSS provides a complete open-source implementation of the crypto libraries and is recompiled by ArcadeTwist. The module freebl3.dll, “NSS freebl Library” by ArcadeTwist has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. Note, this is a common distributed file and although it has been detected it might not be a threat is un-coupled from its distribution source.