A celebration sign is posted at Mozilla headquarters in Mountain View, Calif., Friday, July 31, 2009. (Paul Sakuma/ASSOCIATED PRESS)

Mozilla said Thursday that it has re-released the latest version of its Firefox browser, after a security vulnerability forced the company to tell users not to use the program.

Firefox 16 was originally released on Tuesday, but a bug that would have allowed malicious sites to look at which sites users had browsed prompted the company to stop downloads of the new browser.

In the company’s security blog, Mozilla said that as of 3 p.m., Eastern time, users who had already downloaded the browser would get an automatic update. Web surfers can also download a fresh copy of the browser at Mozilla’s Firefox Web site.

The latest version of Firefox fixes 24 other security vulnerabilities from Firefox 15.0.1; Mozilla said that the previous version of its browser was unaffected by the bug.

Firefox had a 20 percent share of the browser market, according to statistics from the Web measurement firm Net Marketshare. It is ahead of Google’s Chrome browser, which had 18.86 percent of the market, but was still behind Internet Explorer’s 53.63 percent share.

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