If you accidentally close a tab in Firefox, there are 2 ways you can bring it back:
1.Right-click on the tab bar, then click "Undo Close Tab". You can repeat this step if you're looking for a tab you closed a while back in the same session.
Here's a handy trick to remember, especially if you're viewing websites on a small screen, or if you use extra toolbars that take up some of your browser's "real estate." For example, if you want to get the best view of the Wildlife Photographer of the Year 2012 page, you may need to have your browser go full-screen.
If you've updated your computer's copy of Firefox to version 13, you've probably already noticed when you open a new tab, it doesn't look like the blank page you used to see in older versions. Now, every time you open a new tab, you see thumbnail images of your most-recently and most-frequently visited pages.
If you're not in love with the way each of these looks & functions, the good news is you can customize them to fit your needs.
After making a major update to a website, the staffperson who had requested the change told me the website looked no different than before. I was puzzled by this, because I had tested the website in 4 or 5 different web browser versions to make sure the website looked right & behaved correctly. But as soon as I started talking with her, I suspected the problem was simply that her web browser had "cached" the old version, and wasn't checking the web server for a more recent version.
The newest version of the Firefox web browser was released on March 22nd, and since by default Firefox is configured to automatically check for updates, you may already be using it. If not, you can upgrade to Firefox 4 by clicking this link; when the install process is complete you'll just need to restart Firefox.
I usually download a new version of Firefox as soon as its available, but have gotten "burned" because many extensions & add-ons I use aren't immediately compatible -- developers usually need a couple of days to update an add-on to work with the latest version of Firefox.
A couple of days ago I got a question from a library director who wanted to know how she could save her Firefox bookmarks. (She's preparing her laptop to be wiped clean so Windows 7 can be installed, and wants to be able to copy the bookmarks & then re-install them on the PC.)
The Back button in Firefox allows you to move backwards to revisit pages you've seen during your current session. You can click the button to go back one page at a time, or you can "leapfrog" back by more than one step.