The Firefox 2.0 beta is a superb engine for editing Wikipedia. Among other things, it features something web browsers have traditionally lacked -- an internal spell checker that actually works. the utility fo this for a wikipedia editor should be obvious -- it eliminates the neccesity to go to a second application for spell checking which would, in turn, foul up the wiki formatting.
However, this might be why Firefor 2 seems to crash when switching to the edit view on very large articles. Has anyone else had a similar experience when switching to edit view on a very large page?