I know this is an old question, but it can still be useful for those who find this question.
You can run an instance of Firebug Lite using this bookmarklet, for example:
javascript:(function(F,i,r,e,b,u,g,L,I,T,E){if(F.getElementById(b))return;E=F[i+'NS']&&F.documentElement.namespaceURI;E=E?F[i+'NS'](E,'script'):F[i]('script');E[r]('id',b);E[r]('src',I+g+T);E[r](b,u);(F[e]('head')[0]||F[e]('body')[0]).appendChild(E);E=new%20Image;E[r]('src',I+L);})(document,'createElement','setAttribute','getElementsByTagName','FirebugLite','4','firebug-lite.js','releases/lite/latest/skin/xp/sprite.png','https://getfirebug.com/','#startOpened');
You can then have the HTML panel in the main Firebug extension, having the console in the Firebug Lite shortcut.
Usually I keep my main Firebug on the right, which works well, like Firebug Lite below, and currently does not have a positioning option.
source share