Google Wave Add-o
n for Firefox is the first add-on related to Google Wave. This GoogleWave Notifier just sits on the bottom right of Firefox and notifies you about new waves in your inbox. Though this looks simple, instead of using a separate window for Google Waveyou can just look at your Waves very easily. You need to provide your Google Login and Password for the add-on. You can also set the time interval to check the waves.
Google Wave Notifier has been tested and works with Firefox 3.x.x but not version 3.7a1pre.
Download Google Wave Add-on for Firefox v0.0.1