Another many years old bug, very annoying, but not sure if you can fix:
opening the error console forces a small window size. A few people tried to fix the xul in the past, but didn't help.
And if opening it in a TAB, which I prefer, then the whole browser window with all tabs inside gets smaller too.
I've modified history window that way it opens in tab and doesn't make browser that smal
Forum: K-Meleon on Goanna