I tried to install and got this error:
sh@Notebook-PC:~$ sudo dpkg --install viber.deb [sudo] password for sh: (Reading database ... 319492 files and directories currently installed.) Preparing to unpack viber.deb ... Unpacking viber (4.2.2.6) ... dpkg-deb (subprocess): decompressing archive member: internal gzip read error: '<fd:4>: invalid bit length repeat' dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing archive viber.deb (--install): subprocess dpkg-deb --fsys-tarfile returned error exit status 2 Errors were encountered while processing: viber.deb 21 Answer
Probably no one will read this answer, but i had a very similar issue to this. I solved it by downloading zip file from here
wget Then run this commands
unzip Viber.zip cd Viber ~/Viber/Viber.sh Hopefully this will solve your issue.