Since Dapper is frozen since its release in June, this will not be fixed for the Firefox for that version. And in Edgy, which uses Firefox 2, that feature (clicking on that circle in the upper right corner) doesn't exist anymore: clicking on the circle doesn't do anything, and it doesn't display any tooltip.
So this problem has been "solved"... ** Changed in: firefox (Ubuntu) Status: Unconfirmed => Rejected -- misleading tooltip on circular object https://launchpad.net/bugs/55117 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs