If you’re interested in running Yammer, on OSX, in a Site Specific Browser (SSB), so that you can launch it like a normal application, etc:
2.) launch Fluid and setup with your Yammer feeds url (like: https://www.yammer.com/company.com)
3.) In Preferences -> Advanced of your new “Yammer app”, select “Allow browsing to any URL” (if login keeps sending you to your “real browser” you don’t have this checked)
4.) Click the scripty looking icon in the top bar and choose “Browse userscripts.org” -> search for “Yammer” and choose “Fluid Badge for Yammer Unread Messages”. Install it and activate it.
5.) You should probably restart your Yammer application now.
That’s it. Enjoy and let me know if you have issues.