Firefox IE tab does not include firefox's spelling correction

Question

Is there a good Firefox plug-in which embeds Internet Explorer in a tab yet includes Firefox functionality like the built-in spell checker to underline in red misspelled words?

Answer 1

No, because when IETab is running, Internet Explorer is handling the content of the tab, not Firefox.

The only way is to install an addon to Internet Explorer that does spell checking, like ieSpell or the one included in IE7Pro for instance. This spell checker will be active when a tab using IETab (and thus IE) is open.