IMCE can use front JS configuration: for example, if your front theme is using jQuery 1.9... IMCE doesn't work.
imce/js/imce.js, line 792:
$.browser.msie && $('html').addClass('ie') && parseFloat($.browser.version) < 8 && $('html').addClass('ie-7');
jQuery 1.9 relase note:
The jQuery.browser() method has been deprecated since jQuery 1.3 and is removed in 1.9. If needed, it is available as part of the jQuery Migrate plugin. We recommend using feature detection with a library such as Modernizr.
Horodatage : 22/04/2013 16:21:35
Erreur : TypeError: $.browser is undefined
We should edit imce.js to be compatible with jQuery 1.9 and higher (and keep compatibilité with anterior versions).
I'm sorry, i don't know very well imce.js and i don't see exactly the impacts when removing line 792 so i can't propose anything. But I would like a patch to me. :p