The Mozilla Foundation has released security updates for Firefox and email application, Thunderbird.

None of the bugs had been publicly revealed before, and they are generally not considered to be critical, according to Chris Hofmann, director of engineering with The Mozilla Foundation.

"There are a collection of ten reports that have come in over the past couple of months from security researchers," he said. "Most of these involve quite a bit of user interaction to participate in the potential exploit."

Still, the Foundation advises that all users upgrade to the new software, which also includes "stability" improvements.

The bugs are patched in version 1.0.5 of the Firefox browser. A Thunderbird update, also numbered 1.0.5 is expected Wednesday, Hofmann said. The patches will also be applied in version 1.7.9 of the Mozilla suite, which will be released sometime within the week, he said.