Mozilla has been known as a very safe browser as compared to its old enemy, Internet Explorer. In fact, many people used it for just that reason. So the last thing Mozilla needed was reports of Malware in two ad-ons which were available for download from their website.

“Two add-ons in the experimental section of addons.mozilla.org were found to be containing malware,” Mozilla said on its security blog. “These were not originally detected with the anti-malware scanning tools that we have been using. We have since increased the number of scanning tools, and will be taking additional steps to minimize the risk of further incidents.

It is thought that well in excess of 4,000 downloads of the ad-ons have taken place since they were first released in September. So are you one of the thousands of people who inadvertently infected their own machines? Well if you downloaded Sothink 4.0 and all versions of Master Filer then there’s a good chance you are. These installed Win32.LdPinch.gen and Win32.Bitfrose.32.Bitfrose Trojan respectively. So if you have downloaded these, I suggest running a scan of your system ASAP.

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Contacts Sidebar – handy addon that lets you display all available address books in Thunderbird sidebar. This lets you easily access all your contacts from the main window, quickly edit contact details, drag’n drop files on top of a contact to send it as an attachment and more… (Thunderbird: 1.5b – 2.0.0.*)

QuoteCollapse – automatically collapses all the quotes within any message, making it look neat and less cluttered. To expand quotes back to standard view just click inserted ‘+’ button. (Thunderbird: 0.7 – 2.0.0.*)

QuickMove – must-have addon letting you quickly file messages to your frequently used folders using keyboard shortcuts. (Thunderbird: 0.5 – 2.0+)

Signature Switch – allows you to create multiple email signatures (Private, Business, etc.) and quickly switch between them right from the main toolbar. Also provides configurable signature auto-switch option based on the email recipients. (Thunderbird: 0.7 – 2.0.0.*)

Remove Duplicate Messages – helps you quickly locate and remove duplicate messages from the selected folders (and its subfolders). (Thunderbird: 1.0 – 1.5.0.*)

Nostalgy – lets you assign single-key keyboard shortcuts to common thunderbird operations i.e., move/copy/delete messages, change folder, add/remove/view tags, add attachment, scroll the message while keeping the focus on the thread pane and lots more. (Thunderbird: 1.5 – 2.0.0.*)

GMailUI – adds Gmail-like mail archiving and powerful message search (i.e. ‘from:Makeuseof to:Aibek’) functionalities into Thunderbird. Makes excellent addition to already existing ‘Saved Searches’ feature. (Thunderbird: 0.8 – 2.0.0.*)

Attachment Extractor – integrates one-click attachment extract option from selected messages. Once attachments have been extracted it can delete, detach or mark messages as ‘read’. Way easier than going through messages one-by-one. (Thunderbird: 2.0 – 2.0.0.*)

Auto Zip Attachments – adds an ‘AutoZip’ button to the compose toolbar allowing you to compress all attached files to a single ‘zip’ file. (Thunderbird: 1.5 – 2.0.0.*)

Send Later – integrates extra ‘Send Later At’ (’Ctrl+Shift+Return’) feature to the message compose window, allowing you to send messages on a particular future date and time. It can be a contract cancellation notice, a ‘Happy Birthday’ or a friendly ‘Don’t Forget’ note. (Thunderbird: 1.5 – 2.0)

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avant.garde.10011:nerom created by Rob Holian.  (experimental)

Black Steel by Ben Griscom. (experimental)

Dark Revisited by Matthew Baerbock. (experimental)

Gradient iCool by Edward Mak.

Midnight Fox by TwisterMC.

Ruler Dark by dkgo. (experimental)

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