The latest version of Firefox, 1.5, has been released. New and improved features include:

* “drag and drop” feature for tabbed browsing so that you can re-arrange the tabs
* Improved pop-up blocker
*Addition of Answers.com now included in the integrated Search box.
* Improved Live Bookmarks feature for RSS feeds.
* New Automatic Update system
* New Clear Private Data tool so that you can clear all private information, such as history and form entries, via one settings window.

I have also noticed that it displays pages significantly faster.

You may find that some of your extensions may be disabled because Firefox thinks that they are not compatible with this latest version. I initially had a problem with Flashblock, Googlebar, TinyUrl creator and Pagerank. Checking for updates will sort out most of the “incomptibilities”. For the rest, try the Nightly Tester Tools extension. Primarily intended to check for new nightly builds of Firefox, it also has an option that tells Firefox your existing plug-ins can work with the latest download. There is a chance that an extension could cause problems but it worked OK with my collection.