My server throws up subwindows with several fields, e.g., for proxy verification or login. Firefox positions the cursor in the first field OK. But if I click tab key at the end of entering characters in that field, the cursor does not go to the next field as I expect. It goes to the first tab in the Firefox top bar of open tabs. Another tab click takes me to next tab in Firefox. After all top bar tabs are entered in sequence, another tab click takes me back to the subwindow, and then I CAN tab through the fields within the subwindow in sequence. Is there a config setting to disable tab clicks from jumping to top bar tabs, and just take me through the fields in the subwindow?