The long wait is over, Firefox4 makes its ground and is now available for public consumption. I am using it since beta 2 and have no issues so far until this final release on openSUSE 11.3. It has a new great feature which i really love to use is tabs grouping. This is the best feature i came across in this new version, there are many but i like this one because it make easy to group different sites like mails, forums, social sites etc etc. Explore it..
If you want to download it manually, here you can find the download link.
Read this for more exciting features Firefox 4 offer.
If you are using openSUSE 11.3 OR 11.4 and want to install it without any problem, follow this link.
Update (31-03-2011): Features of FF4