Vimperator has a limited normal mode for textboxes, called "textarea mode". Press ctrl+t when in a textbox, and you can then use the usual vim movement/editing

Vimperator has a limited normal mode for textboxes, called "textarea mode". Press ctrl+t when in a textbox, and you can then use the usual vim movement/editing commands on the text. However it's far from a full implementation of vim editing, and is a bit buggy. edit: It looks like the maintainer has sort of abandoned that feature, though, at least as of 2010, http://www.mozdev.org/pipermail/vimperator/2010-May/005475.html http://www.mozdev.org/pipermail/vimperator/2010-May/005475.h...