Firefox Tip: Save tabs just once (Shallow Thoughts)

Firefox Tip: Save tabs just once

I've been offline and unable to update the blog for a while (technical glitch, long story) but I'm back and have several stories to polish up and post, beginning with this helpful (I hope) Firefox tidbit:

I've often wanted a way to get Firefox to save the current set of tabs without actually bookmarking them -- the way it does when you install an extension and need to restart. But I'd never found a way to do that through the menus.

But then I realized that I could use the same trick that I use for landscape printing:

1. Edit user.js in your Firefox profile directory, and add this line:

   user_pref("browser.tabs.warnOnClose", false);
   

   This will ensure that normally, it doesn't give you the confirmation box, only when you ask for it.
2. In your running Firefox, go to about:config and search for tabs
3. Look for the browser.tabs.warnOnClose line and doubleclick it (change it to true)

Now you'll get the confirmation dialog when you quit this session.