Math edit button:
https://commons.wikimedia.org/wiki/File:Button_math.png
in MediaWiki edit button toolbar migrated from its standart position to the first position (to left on Czech projects in FF 28.0) and to the last postion (Czech language, Google Chrome). Please move it back to its possition.
Version: unspecified
Severity: normal
See Also:
T62471: move insert math button from EditPage to extension math
T30681: Native editButtons can't be removed or reordered through r86603