Are there any known issues when trying to change folders in any of the popups (Insert Image, Insert File, etc.) with Firefox? When I try to change to a subfolder in any of them, nothing happens. If I look as the Javascript errors, it shows:

Error: uncaught exception: [Exception... "Illegal operation on WrappedNative prototype object"  nsresult: "0x8057000c (NS_ERROR_XPC_BAD_OP_ON_WN_PROTO)"  location: "JS frame :: http://localhost/IPN/CuteSoft_Client/CuteEditor/_shared.js :: event_prototype_get_srcElement :: line 1"  data: no]

I'm using version 4.5.0.1

When testing this forum script with firefox, i don't seem to get the same error when changing folders in your popups, changing folders works fine.