Preparing to unpack .../adobe-flash-properties-gtk_1%3a20150811.1-0vivid1_amd64.deb ...
Unpacking adobe-flash-properties-gtk (1:20150811.1-0vivid1) over (1:20150716.1-0vivid1) ...
Preparing to unpack .../adobe-flashplugin_1%3a20150811.1-0vivid1_amd64.deb ...
Unpacking adobe-flashplugin (1:20150811.1-0vivid1) over (1:20150716.1-0vivid1) ...
Preparing to unpack .../python3-problem-report_2.17.2-0ubuntu1.2_all.deb ...
Unpacking python3-problem-report (2.17.2-0ubuntu1.2) over (2.17.2-0ubuntu1.1) ...
Preparing to unpack .../python3-apport_2.17.2-0ubuntu1.2_all.deb ...
Unpacking python3-apport (2.17.2-0ubuntu1.2) over (2.17.2-0ubuntu1.1) ...
Preparing to unpack .../apport_2.17.2-0ubuntu1.2_all.deb ...
Unpacking apport (2.17.2-0ubuntu1.2) over (2.17.2-0ubuntu1.1) ...
Preparing to unpack .../apport-gtk_2.17.2-0ubuntu1.2_all.deb ...
Unpacking apport-gtk (2.17.2-0ubuntu1.2) over (2.17.2-0ubuntu1.1) ...
Preparing to unpack .../firefox_40.0+build4-0ubuntu0.15.04.1_amd64.deb ...
Unpacking firefox (40.0+build4-0ubuntu0.15.04.1) over (39.0.3+build2-0ubuntu0.15.04.1) ...
dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing archive /var/cache/apt/archives/firefox_40.0+build4-0ubuntu0.15.04.1_amd64.deb (--unpack):
 cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg-new': unexpected end of file or stream