Opera

[aus9]

You appear to be missing the actual package (not an old version) try this to resolve it

Code:

sudo apt-get install libcurl3

heres my 64 bit as kind of proof
dpkg -l | grep libcurl
ii  libcurl3:amd64                        7.47.0-1ubuntu2                            amd64        easy-to-use client-side URL transfer library (OpenSSL flavour)
ii  libcurl3-gnutls:amd64                7.47.0-1ubuntu2                            amd64        easy-to-use client-side URL transfer library (GnuTLS flavour)
ii  python-pycurl                        7.43.0-1ubuntu1                            amd64        Python bindings to libcurl
ii  python3-pycurl                        7.43.0-1ubuntu1                            amd64        Python bindings to libcurl (Python 3)