Yettwasezmel 1 ɣef 5 n yetran

sɛur kroal di Feb. 1, 2014 · aseɣwen yezgan

Well unhappy about hidden ads. Such a great tool and it's a shame to see this.

You can disable it yourself by unpacking the xpi (it's just a zip archive) and modifying dcurrency_overlay.xul by removing a line that includes a ff-overlay.js file. Repack the file again and install it in firefox.