When setting a breakpoint by placing the debugger; statement somewhere or
placing a breakpoint from within Firebug, Firefox/Firebug hangs for a few
seems frozen, and Firebug has done nothing but make the Script tab text
yellow. Under the hood, the breakpoint it being hit, because pressing F8 or
F10 does advance the debugger, but it doesn't show.
Also, after refreshing the page with the Script tab open in Firebug, the
tab will be empty and the filename dropdown will the empty too. I needs to
switch tabs to make the GUI right again. This happens with or without
breakpoints btw, but maybe it is related.
This is Firebug 1.10.0 on Firefox 14 on Windows 7.
I don't recall this happening on Firefox 13.