Themes and Extensions

To add an extension to Firefox, you'll want to go to Tools and then
Extensions and click (select) Get More Extensions within the Extensions
menu.

Extensions are community developed add-ons to Firefox or other Mozilla
programs that expand or improve features within Firefox.

In this case we are going to select a news reader that would instead of
doing Live Bookmarks from RSS feeds woud take the stories itself and
allow you read clips from it (the stories) rather than having to go to
the site itself.  In this case, when you to select to install one
(extension) you have to restart Firefox after installing an extension. 
So you have to close out Firefox.08:49 When you close Firefox and you
have tabs open Firefox will warn you (that you have tabs open.)  If you
want to save these tabs (before you close) you can bookmark this page
and choose Bookmark all tabs in a folder.  In this case we are going to
name it browsing so that we can come back to it later. 09:00 So after
saving the tabs that are open by adding a bookmark of all the tabs, as
you can see they are all there.  We'll close up Firefox's windows to
finish installing the extension.

Then if we launch Firefox again, when we open the Tools, Extension Menu
we'll see that our Sage RSS feed reader that we installed is now
operational and so access this from Tools.

This would open Sage in a sidebar that woulld list the feeds that Sage
is currently subscribed to.

So this is a way to add and extend features of Firefox.

Themes are a way to change the look of Firefox and are they installed in
a very similar way to Extensions except you go to Themes rather than
Extensions (under Tools).

Now if we wanted to go back to all the things we were browsing earlier
we would go to the browsing folder (in Bookmarks and select) Open all
tabs and everything we had looked at before would be available again.