Mozilla 1.5a is Officially Out

and available for download from Mozilla.org. Here are the release notes. The new features and fixes include:

- Many great improvements to Mozilla Composer including:

• better resizing for images, tables and absolutely positioned objects
• support for absolutely positioned objects, movable on the canvas using the mouse
• support for z-index management
• "snap to grid" when moving an absolutely positioned object
• Source View now uses an editor instead of a simple textarea (allows find and replace)
• numerous fixes in caret management, inline styles handling and CSS styles handling

- Chatzilla now has support for logging and lots of bugfixes.

- Dom Inspector can now display the #document node (the document root.)

- A quicksearch filter has been implemented for about:config.

- Improvements to tabbed browsing including:

• Back and Forward navigation for tabbed browsing and bookmark groups has been improved. Users can now use the back button after loading a bookmark group to restore the previous tabs.
• Closing a window with multiple tabs now prompts the user with a confirmation dialog (which can be disabled for future close operations.)

- It is now possible to jump from the JavaScript console to the relevant line in the View Source Window

- The '::' notation for CSS pseudo-elements is now supported. The old ':' notation is still supported for the various -moz-* pseudo-elements, but will NOT be supported in 1.5b. Themes should be updated to use the '::' notation for pseudo-elements.