User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a6pre) Gecko/20100626 Minefield/3.7a6pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a6pre) Gecko/20100626 Minefield/3.7a6pre When Minefield is maximized multiple UI problems arise with the new UI (single Minefield button, and no menu bars). Firstly, the Minefield button goes to the top of the screen, in a way that it is no longer fully visible. Secondly, the bookmark button, and part of the search bar overlap with the close, maximize, and minimize buttons. If the option is enabled to set tabs on top the tabs and the add a tab bar overlap with the close, maximize, and minimize buttons at the top of the screen. Reproducible: Always Steps to Reproduce: 1. Open a Minefield window (with new UI) 2. Maximize the window Actual Results: 1. The Minefield button is no longer fully visible, as it goes off the screen (half of it is still visible on the top of the screen) 2. When tabs are set at the bottom, the bookmark bar and search bar overlap the close, maximize, and minimize buttons. 3. When tabs are set at the top of the page, the tabs and add tab button can overlap the close, maximize, and minimize buttons. Expected Results: The Minefield button should be fully visible. The add a tab button and tabs (in tabs on top mode) should not overlap the close, maximize, and minimize buttons. The bookmark button and search bar should not overlap the close, maximize, and minimize buttons in the tabs on the bottom mode. None of the above issues are experienced when the menu bar UI is turned back on. Below is the build config: Source Built from http://hg.mozilla.org/mozilla-central/rev/fae5d6bd9c53 Build platform target i686-pc-mingw32 Build tools Compiler Version Compiler flags cl 14.00.50727.762 -TC -nologo -W3 -Gy -Fdgenerated.pdb -DNDEBUG -DTRIMMED -Zi -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1 cl 14.00.50727.762 -GR- -TP -nologo -Zc:wchar_t- -W3 -Gy -Fdgenerated.pdb -wd4800 -DNDEBUG -DTRIMMED -Zi -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1 Configure arguments --enable-application=browser --enable-update-channel=nightly --enable-update-packaging --enable-jemalloc --enable-tests