If the address bar (navigation bar) is too close to the bottom of the screen to display the autocomplete menu under it, Firefox tries to display the list above the address bar. Instead, it is placed slightly too low, and covers the address bar completely so that you cannot see what you are typing. Reproducible: Always Steps to Reproduce: 1. Move Firefox so that the address bar is very near the bottom of the screen. 2. Type 'http:' in the address bar. 3. Actual Results: The autocomplete URL menu pops up over the address bar and now you cannot see what you are typing. Expected Results: The autocomplete URL menu should appear just above the address bar so that you can still see what you type.
There's nothing
There's nothing Gentoo should fix here, if this is still an issue, please report this upstream.