The "find text" window (control + f) searches the active window instead of the window active at the time control+f was pressed and imo this is a wrong behavior.
Since that window is modal, it's ok for non-desktop window, but in a situation when you have a desktop window, it is possible to search the "wrong window".
For example, if #mIRC is a non-desktop window and @a is a desktop window, hitting control + f from #mIRC opens the "find text" window, but if you switch to @a, it will search in @a, and since it's modal, you can't even make #mIRC the active window again
Less problematic if you hit control + f from @a, but you can still search in #mIRC
