The maker of Energizer brand batteries is continuing to serve its customers a file laced with a data-stealing trojan more than 24 hours after the company was notified of the threat and almost two weeks after it promised to fix the problem.

A spokeswoman for Energizer Holdings acknowledged receiving a voicemail Wednesday night informing her the trojan was being offered for download on one of the company’s European websites. She said she didn’t respond to the message because of the late hour at which it was left, and never saw an article reporting that two anti-virus firms had confirmed the site continued to offer the toxic file 12 days after the company promised to stamp it out.

Mozilla confirmed the presence of an unpatched flaw in its browser on Thursday, with a post promising to release a fix at the end of the month.

The flaw, discovered by security researcher Evgeny Legerov, creates a means to inject hostile code on vulnerable systems. The vulnerability is due to be fixed in version 3.6 of Firefox on 30 March.