Yesterday, Mozilla has released Firefox 3.5 Beta 4. If you noticed that the previous beta version was Firefox 3.1 Beta 3. The 3.1 to 3.5 is due to name changes by Mozilla as there's too much changes and improvement in Firefox 3.1 development.Two major changes I found in this beta release:
1. Firefox 3.5 Beta 4 no longer allows you to send an open tab to a new window by clicking and dragging. To do that, you need to right click on selected tab and choose "Open in a new Window". However, to move tab between window, you can use click and drag.
2. Simplify private browsing. Firefox 3.5 development team has made private browsing more easier. Click on "Tools" and choose "Start Private Browsing". Or, you can just press Ctrl+Shift+P. At this point , Firefox will save and hide your current tabs. When you're done with private browsing, your previous tabs will re-appear.
Firefox 3.5 Beta 4 is available in 70 languages, making it the most successful beta release.
You can download Firefox 3.5 Beta 4 from the following link
Download Firefox 3.5 Beta 4
Firefox 3.5 Beta 4 download page.