The first novelty implemented in this new version of Firefox has been the fact that Java plugins and Apple Quick Time Player not loaded by default. Basically, from now only be loaded by default the plug-in Adobe Flash and the rest will prompt the user to approve their load before they are launched. With the measure expected to Mozilla Firefox 26 prevents users from being attacked by exploits that leverage vulnerabilities in the code of the plug-in, in addition to protecting Internet users against the plug-ins that cause instabilities in the browser. In that aspect the configuration options are very broad, as it may enable or disable plugins by typing “about: addons” in the address bar. Further developments related to updates to the browser, as it now can be installed even if the user does not have administrator privileges, and improved load times of images. In the security field stands Firefox Password Manager, and now the password manager supports “Script-generated password”. Other enhancements include the arrival of H.264 support in GNU / Linux, Windows XP MP3 decoding, and the fact that the social API supports social bookmarks for multiple suppliers through SocialMarks. To download the browser must visit the link below.