You can find the eyedropper under “Browser Tools” in the Tools menu or under “More Tools” in the { -brand-name-firefox } toolbar menu (at the end of the { -brand-name-firefox } toolbar).
You can find the eyedropper under “Browser Tools” in the Tools menu or under “More Tools” in the { -brand-name-firefox } toolbar menu (at the end of the { -brand-name-firefox } toolbar).