“This lightweight Firefox extension places a small Yammer logo in the lower right corner of your Firefox browser. When new messages arrive, YammerFox pops up a small window displaying the message. You can click the Yammer logo to display a list of the last twenty messages, reply, or post new messages.”
The Yammer Blog – Get Your YammerFox
⚠️ This post is more than five years old. Links may rot, opinions may change, and context might be missing. Proceed with cautious optimism.