Rated 5 out of 5 stars

Finally I found out why I do not have Firefox's own "Find" button:

The button is available with the (ugly) standard skin of Firefox (Default 29.0.1) but not with the skin I use (Winestripe Realfox 4).

But good news:

I just installed the add-on "Find Button" (https://addons.mozilla.org/de/firefox/addon/find-button/).
And it works fine with "Winestripe Realfox 4" and "Findbar Tweak". :-))

Sorry for the long correspondence and
thanks again for your patience.

This user has 4 previous reviews of this add-on.