I finally figured out why my half-written blog entries keep vanishing. Apparently, the default action for ^W in Iceweasel is to close the current tab. This appears to be true even if the current keyboard focus is in a text edit box…
I guess this would be because the Iceweasel folks hate us old-school, keyboard-driven types. I keep turning emacs-style text editing for Iceweasel back on, but it seems to keep getting turned back off with upgrades.
Another approach would be to try a solution like It's All Text or even Conkeror that lets me use real emacs or something very like it for editing in Firefox.
I dunno. I'll figure out something. At least I now know where my unfinished posts keep going. (B)