ZDNet Australia revealed in December last year that tabbed browsing -- one of the most popular features of the Firefox, Opera and Internet Explorer 7 Web browsers -- had been developed for Thunderbird by software developer Myk Melez.
But work on that feature has now stalled.
"Recently, there has been some development work in bringing Firefox's tabbed interface over to Thunderbird, hopefully by version 2.0," wrote developer Gary Kwong on Mozilla's Thunderbird development blog yesterday.
"However, due to circumstances, the volunteer at the heart of this new feature is unable to carry on as of the end of January," he continued.
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