Purple Jellybean 229

For the last four days or so I keep getting a yellow tab popping up in my yahoo mail (as if it was another email I had been working on) that says the words in my subject line but with a dot between purple and jellybean and no spaces.  I have not opened it and continue to close the tab every time because it looks quite suspicious.  I have run my norton scans several times and they have not identified it as a threat.  Does anyone know what this is and how it can be eliminated?