Mozilla Corp. updated Firefox Friday to patch 14 vulnerabilities, three of them critical, but pushed out the new versions without fixing several flaws.

Firefox and Firefox, which originally were to release on Wednesday, were delayed to patch a series of bugs, including some disclosed this month by Polish researcher Michal Zelewski. Two others forwarded to Mozilla developers by Zelewski, however, didn’t make it into today’s updates.

“Neither of those will make this release,” said Daniel Veditz, of the Mozilla security in an e-mail. “It is important that we get the security fixes we have into the hands of our users.”

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