The Mozilla Foundation released a Firefox 39.0 browser version of the hotfix.
The security version is very important and urgent, and proves that while the 40.0 version is almost ready, the Mozilla Foundation has released bug fix without waiting for its official release.
Firefox 39.0.3 update fixes a critical security issue in the built-in program projections PDF.
“Security researcher Cody discovered a way infringementς της πολιτικής προέλευσης με την εισαγωγή δέσμης ενεργειών σε ένα μη-προνομιούχο μέρος του ενσωματωμένου PDF Viewer. Αυτό επιτρέπει σε έναν εισβολέα να διαβάσει και να κλέψει ευαίσθητα τοπικά αρχεία στον computer of the victim,” the Mozilla Foundation reports.
“The Mozilla Foundation has received reports that a exploit based on the vulnerability is already circulating.”
It is advisable to instantly update the Firefox you are using in the 39.0.3 version.
Download the new version in English for Windows, Mac, and Linux
Firefox 39.0.3 Windows
Firefox 39.0.3 Mac
Firefox 39.0.3 Linux