Otherwise, it will be disabled and you won't see any difference. If you don't have any non-compatible add-ons installed, then you should see Multiprocess Windows enabled in about:support. With Firefox 49, VentureBeat is reporting that Mozilla is allowing a “small initial set of compatible add-ons” to be enabled alongside multi-process. As such, Mozilla is pulling access to a few APIs when multi-process is enabled. You can see how this could be a problem if, for instance, an add-on loops between tasks on both at the same time. Under typical situations, JavaScript and other tasks that run in the page shouldn't affect the browser's interface. Typically, Firefox disables the feature with add-ons, because they are given the tools to make decoupling these two spaces… glitchy. T his version is expected to expand their multi-process support, which separates UI updates from site updates. This might be temporary and/or happens with every Firefox for Android update I'm new to this platform. Also, for some reason, Firefox for Android doesn't want to update from within itself, but triggering an update from the Google Play store works. 'system_requirements': '# Windows # Operating Systems (32-bit and 64-bit) - Windows XP SP2 - Windows Server 2003 SP1 - Windows Vista - Windows 7 - Windows 8 - Windows 10 - Pentium 4 or newer processor that supports SSE2 *Please note that 64-bit builds of Firefox are only supported on Windows 7 and higher.* # Recommended Hardware - 512MB of RAM - 200MB of hard drive space - # Mac # Operating Systems - Mac OS X 10.9 - Mac OS X 10.10 - Mac OS X 10.11 # Recommended Hardware - Macintosh computer with an Intel x86 processor - 512 MB of RAM - 200 MB hard drive space - # GNU/Linux # Software Requirements *Please note that GNU/Linux distributors may provide packages for your distribution which have different requirements.* - Firefox will not run at all without the following libraries or packages: - GTK+ 3.4 or higher - GLib 2.22 or higher - Pango 1.14 or higher - X.Org 1.0 or higher (1.7 or higher is recommended) - libstdc++ 4.3 or higher - For optimal functionality, we recommend the following libraries or packages: - NetworkManager 0.7 or higher - DBus 1.0 or higher - HAL 0.5.8 or higher - GNOME 2.While it was originally scheduled for last week, some last-minute issues preventing the software non-profit organization from releasing it until today. 'note': 'Mitigate a startup crash issue caused by (Windows only) () : : ',

Mozilla firefox 49 and below