Opera refuses to start:
opera-developer: relocation error: /usr/lib/x86_64-linux-gnu/libcurl.so.4: symbol SSLv3_client_method, version OPENSSL_1.0.0 not defined in file libssl.so.1.0.0 with link time reference

I think this is the same bug as: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=768476
...
This is intentional. All packages having such an error with
SSLv3_client_method, SSLv3_server_method and SSLv3_method should
get a bug filed against them to stop using those functions.
...

I hope some developer can fix this issue