(Quote from bug 46401 comment #2)
http://commons.wikimedia.org/wiki/Commons:
FORUM#komprimiertes_JavaScript_kaputt.3F
https://commons.wikimedia.org/wiki/Commons:
Village_pump#Strange_problem_with_CSS
https://en.wikipedia.org/wiki/Wikipedia:
Village_pump_%28technical%29#CSS_errors_with_search_box.2C_etc..3F
https://en.wikipedia.org/wiki/Wikipedia:
Village_pump_%28technical%29#Errors_with_editing_interface_and_sidebar
Only affects Firefox.
Version: 1.21.x
Severity: critical