Until my blog is restored, I thought I'd just dump this here for future reference:
 
You know how annoying it is when you open up Firefox after a crash and it opens up
50 damn tabs and completely burns through memory and bandwidth reloading pictures
of LOLCATS or whatever dumb crap you had open.
 
There's a way around this.
 
1. open <about:config>
2. find browser.sessionstore.max_resumed_crashes property
3. set it to (int) 0.
 
This way, you'll get a page <about:sessionrestore> which will be automatically
loaded after any browser crash (simulate one on OS X: `sudo killall firefox-bin`)
and provide you with a menu showing a list of all the pages you had open, grouped
by window and in tab order. For each page, you get a tick mark, which you can tick
if you want it restored - as well as the favicon and the page title.
 
This saves you from wasting lots of time, bandwidth and RAM reloading pages
you have finished with.
 
Documentation of Session Restore is at:
https://wiki.mozilla.org/Session_Restore