Trying to install Google Talk Plugin

Can any of you experts look at the following output from my attempt to install the Google-Talk Plugin and give me advice on how to proceed getting this accomplished. Thank you.


~ # sudo zypper in file:///home/john/Downloads/google-talkplugin_current_x86_64.rpm
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following NEW package is going to be installed:
  google-talkplugin

1 new package to install.
Overall download size: 7.5 MiB. Already cached: 0 B. After the operation, additional 16.6
MiB will be used.
Continue? [y/n/? shows all options] (y): y
Retrieving package google-talkplugin-5.41.0.0-1.x86_64 (1/1),   7.5 MiB ( 16.6 MiB unpacked)
google-talkplugin_current_x86_64.rpm:
    Header V4 DSA/SHA1 Signature, key ID 7fac5991: NOKEY
    V4 DSA/SHA1 Signature, key ID 7fac5991: NOKEY

google-talkplugin-5.41.0.0-1.x86_64 (Plain RPM files cache): Signature verification failed [4-Signatures public key is not available]
Abort, retry, ignore? [a/r/i] (a): i
Checking for file conflicts: .........................................................[done]
(1/1) Installing: google-talkplugin-5.41.0.0-1 .......................................[done]
Additional rpm output:
warning: /var/cache/zypp/packages/_tmpRPMcache_/google-talkplugin_current_x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 7fac5991: NOKEY
warning: commands will be executed using /bin/sh
job 1 at Sat Dec 12 17:05:00 2015
Can't open /run/atd.pid to signal atd. No atd running?




Despite the output at the bottom of the provided output. I found that it nonetheless installed. It is working but does not seem to be working well. So installation is no longer the problem. However I am wondering if this output might be telling me why the performance is less than acceptable at this point.

 
warning: /var/cache/zypp/packages/_tmpRPMcache_/google-talkplugin_current_x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 7fac5991: NOKEY
warning: commands will be executed using /bin/sh
job 1 at Sat Dec 12 17:05:00 2015
Can't open /run/atd.pid to signal atd. No atd running?    

AFAIK Google Talk has been dead/unsupported since approx Feb 2015.

The recommended substitute is Google Hangouts (which is Google Talk plus social media).

You should be able to install the Google Hangouts extension through the Google Store for your Chromium (or Chrome) browser.

TSU

Tsu2, This program (Google Talk) was called for when I attempted to place a call using the newly installed Hangouts application. I was running on Firefox at the time. Maybe it would not have called for it if I had been running Chrome? I do have Chrome installed.