Works nice but.. Bewertet mit 5 von 5 Sternen

having an issue with the browser icon which disappears suddenly so I can't turn on / turn off flash.

Update: Klemens, Thanks for the kind reply and its working fine now.

Diese Bewertung wurde für eine vorherige Version des Add-ons (0.8.4.1-signed.1-signed) abgegeben. 

Do you mean that the icon of the addon is disappearing? Does it disappear after you've done anything like for example closing a tab or window?
Can you re-add it using the toolbar customisation? (http://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars)