---

Mozilla Firefox 39.0.3 Hotfix Out Now to Patch a Critical Issue in the Built-in PDF Viewer

Mozilla Firefox 39.0.3 update prompts started appearing a few minutes ago via the built-in updater of the software for the aforementioned computer operating system. According to the release notes, this version fixes a critical security issue in the built-in PDF Viewer. All users are urged to update to Mozilla Firefox 39.0.3 as soon as possible in order to patch the critical security vulnerability detailed in the release notes.

Get the Free Newsletter!

Subscribe to Developer Insider for top news, trends, & analysis