Mozilla has just released an update to the Thunderbird email client, shortly after releasing a similar update for the Firefox web browser that brought the version to 10.0.1. Thunderbird 10.0.1 is a stability and security release, and as thus a recommended update for all users of the messaging software.
The update is already available, and Thunderbird users can either download it from the official developer website or use their client’s internal updater to download and apply it. A click on Help > About Thunderbird performs the update check and displays the current version of the program in a small window.
Lets take a look at the changes in Thunderbird 10.0.1.
The security advisory page over at Mozilla offers details on the issue that has been fixed in the update. It affected not only the email client, but also Thunderbird and SeaMonkey as well.
Mozilla developers Andrew McCreight and Olli Pettay found that ReadPrototypeBindings will leave a XBL binding in a hash table even when the function fails. If this occurs, when the cycle collector reads this hash table and attempts to do a virtual method on this binding a crash will occur. This crash may be potentially exploitable.
The change log lists several fixes to improve stability without going into further detail on the subject. Sören Hentzschel mentioned a crash in the client’s importer when importing mails from Microsoft Outlook.
The release of Thunderbird 10.0.1 comes less than two weeks after the last update that moved the version of the email client to 10. Thunderbird 10 introduced a new right-click search option to search directly from within Thunderbird. Results are either displayed directly in Thunderbird in new tabs, or in the default web browser whichever is preferred.
Other changes include new keyboard shortcuts and an extension compatibility change that should reduce the issues that Thunderbird users have in this regard.
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