
The first thing on the list of changes in the Firefox 4 will have to be its UI and the chrome-ish look. Similar to the most of the competitors, Firefox has also changed their browser appearance and kept the tabs on top of their browser window instead of the menu bar. If you are a lover of the older version, but still want the new features, you can easily change it back to the look of your old Firefox browser with only 3 clicks.
The Awesome bar is also a major improvement in the Firefox 4. It is something similar to the Omnibar of Chrome but it works in a different way. The highly efficient auto-complete will help you from history, bookmarks or even page contents to type your URL.
The menu bar has been replaced by a small nice Firefox button clicking which will provide you a two rowed menu containing all the options of the menu bar. If you want to have a comparison you can do it easily by switching the style to the old one.
There is another new feature in this new version of Firefox and this is the Panorama one which will let you work easily with huge number of tabs like more than 100. With this features you will be able to group your tabs and manage them with a number of options. This feature still has some glitches and complexities, but we can expect that these will be fixed with some updates.
After all these new features the new browsers’ judgment comes to the point of speed. Mozilla claims that Firefox 4 is six times faster than the previous versions and in comparison to the latest versions of other browsers, Firefox is not slower to any of those. Mozilla has announced a good number of updates this year and according to some news sources Firefox 5 is one the way too!