If you’re running Fedora or RedHat and you download the plugin required from Google to make voice calls from inside gmail, you’ll need to convert it to an RPM before you can use it.
$ sudo ./alien.pl -r google-talkplugin_current_i386.deb --scripts google-talkplugin-1.4.1.0-2.i386.rpm generated

http://packages.debian.org/unstable/source/alien
Just run the perl script, alien.pl, and you can use it from wherever you unpacked the tarball - without going through any installation process.
Also, it won’t work until you have the older openssl libraries:
* libcrypto.so.0.9.8
* libssl.so.0.9.8
/etc /etc/cron.daily /etc/cron.daily/google-talkplugin /opt /opt/google /opt/google/talkplugin /opt/google/talkplugin/GoogleTalkPlugin /opt/google/talkplugin/cron /opt/google/talkplugin/cron/google-talkplugin /opt/google/talkplugin/lib /opt/google/talkplugin/lib/libCg.so /opt/google/talkplugin/lib/libCgGL.so /opt/google/talkplugin/libnpgoogletalk.so /opt/google/talkplugin/libnpgtpo3dautoplugin.so /usr /usr/lib /usr/lib/firefox /usr/lib/firefox/plugins /usr/lib/firefox/plugins/libnpgoogletalk.so /usr/lib/firefox/plugins/libnpgtpo3dautoplugin.so /usr/lib/iceape /usr/lib/iceape/plugins /usr/lib/iceape/plugins/libnpgoogletalk.so /usr/lib/iceape/plugins/libnpgtpo3dautoplugin.so /usr/lib/iceweasel /usr/lib/iceweasel/plugins /usr/lib/iceweasel/plugins/libnpgoogletalk.so /usr/lib/iceweasel/plugins/libnpgtpo3dautoplugin.so /usr/lib/midbrowser /usr/lib/midbrowser/plugins /usr/lib/midbrowser/plugins/libnpgoogletalk.so /usr/lib/midbrowser/plugins/libnpgtpo3dautoplugin.so /usr/lib/mozilla /usr/lib/mozilla/plugins /usr/lib/mozilla/plugins/libnpgoogletalk.so /usr/lib/mozilla/plugins/libnpgtpo3dautoplugin.so /usr/lib/xulrunner /usr/lib/xulrunner-addons /usr/lib/xulrunner-addons/plugins /usr/lib/xulrunner-addons/plugins/libnpgoogletalk.so /usr/lib/xulrunner-addons/plugins/libnpgtpo3dautoplugin.so /usr/lib/xulrunner/plugins /usr/lib/xulrunner/plugins/libnpgoogletalk.so /usr/lib/xulrunner/plugins/libnpgtpo3dautoplugin.so /usr/share /usr/share/doc /usr/share/doc/google-talkplugin /usr/share/doc/google-talkplugin/changelog.Debian.gz