One of the most celebrated new features of Firefox 3.7 is the feature that will bring the progress bar out of the status bar and onto your current tab. Did you know though that there is an add-on for Firefox that will let you add this functionality now?
The Tab Progress Bar add-on for Firefox is the add-on you need. Having the process bar on top of the tab really makes more sense, as far as functionality goes because you’ll have your eyes closer to the top of the browser (most of the time) than the bottom. Now I won’t go into detail about how this will save your eyeballs stress, due to the fact that they don’t have to bounce up and down from the top of the page to the status bar bellow, but you get the general idea.
Also worth mentioning is that this add-on will not work with the Tab Mix Plus add-on. So for the time being, you’ll need to pick to use one or the other. You can pick up the Tab Progress bar add-on for Firefox at the Firefox Add-ons web site.