Thunderbird 3 RC2 Is Out, Fixes High CPU Usage Bug
Article by George Norman
On 03 Dec 2009
The Mozilla Foundation has recently released the first release candidate (RC) of its Thunderbird 3 email client – after going through a total of 4 Beta releases. Mozilla has now bumped Thunderbird 3 to RC2 (Release Candidate 2) and in the process it has solved a few problems that plagued the software.

It seems there was a bug that caused previous Thunderbird 3 versions to use too much CPU and memory, hang at shutdown and shut down IMAP connections. The RC2 release fixes this bug – and it also two other bugs. It fixes a bug that caused the "download more dictionaries" option to not open properly; and it enables downloading new messages automatically by default for POP3 accounts.


Here are some other enhancements you can expect to get from Thunderbird 3 RC2:
- New Search with Advanced Filtering Tools
- New Global Search Field with Autocomplete
- New Mail Account Setup Wizard
- Redesigned Mail Toolbar
- Tabbed Email Messages
- Smart Folders
- New Message Summary View
- Column Headings
- Message Archive
- Activity Manager
- New Add-ons Manager
- Improved Address Book
- Improved Gmail Integration
- Integrated with Vista search results (Windows version only)
- Integrated with Spotlight (Mac OS X version only)
- Thunderbird 3 can import from, can read your OS X address book, and can use Growl for new mail alerts (Mac OS X version only)
- IMAP Folder Synchronization

If you would like to get Thunderbird 3 RC2, a download location is available

The software is available for Windows, Mac OS X and Linux users; it is available in 49 different languages. Please note that Thunderbird 3 RC2 has been released for testing and community feedback, so do not use it in a production environment.
We strongly suggest you take the time to read the Thunderbird 3 RC2 release notes as they present the software’s new features in greater detail. You should also read the list of known issues before you download and install the software.

Tags: Mozilla, Thunderbird 3 RC2, Release Candidate
About the author: George Norman
George is a news editor.
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