Are you opening too many tabs? Is the tab bar getting too cluttered? Mozilla has recently announced in a blog post that the fourth beta of Firefox 4 is now available. It introduces a new tab management feature known as Firefox Panorama, formerly Firefox Tab Candy.
Panorama is a new feature that allows you to group and organize your tabs by task. In addition, it offers beautiful eye candy and an attractive interface.
Learn more about this new feature in the video below.
To go to the Panorama view, simply click the new button on the right side of the tab bar or use the shortcut key Ctrl + Space.

Firefox Panorama allows you to group tabs.

Firefox Tab Stacks
To create new groups or to rearrange tabs, simply drag and drop. Dragging two or more tabs close to each other will automatically create a new group.
To create a new blank group, simply hold the left mouse key and draw a new box by moving the pointer diagonally.
Groups can be resized. While resizing, a small dotted line appears at the borders extending to the edge of the window to help with organization of groups.
If the size becomes too small, the tabs merge into a stack. To view tabs in stack, simply click the Expand button that appears below it.
To switch to any tab, simply click the tab’s thumbnail. It will then have an expanding effect and show the tab. You will notice that in your tab bar, only those tabs in the same group are showing. The rest are hidden. This is extremely useful for getting rid of clutter.

You can move a tab to another group by right clicking on it.
No other browser has this feature available right now and Mozilla is hard at work with their upcoming version of Firefox. There is definitely serious competition in the browser market right now.
Beta 4 also includes Firefox Sync (formerly Weave) which automatically syncs all your Firefox settings including tabs, preferences, bookmarks, and history so you can access the same data from any location you are using Firefox.
Have you tried the new beta of Firefox yet? What are your thoughts of Panorama? Tell us what you think in the comments.