

If you need to run 32-bit Firefox or manually install 64-bit Firefox, you can simply download and re-run the Windows (32-bit or 64-bit) Firefox installer from the Firefox platforms and languages download page. You can still manually install 64-bit Firefox, if you choose.

Check your Firefox version (in the “About Firefox” window) and look for “(32-bit)” or “(64-bit)” after the version number:
#Quicktime for windows 8.1 64 bit how to#
If you’re running 64-bit Windows ( here’s how to check), your Firefox may already be 64-bit. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit. It is optional for Windows 7 and 8 users in many cases. Also, with the jump from 32 to 64 bits, a security feature called Address Space Layout Randomization (ASLR) works better to protect you from attackers. Note: 32-bit and 64-bit versions included 64-bit option is available on 64-bit versions of Windows 7 and 8 Apple QuickTime 7 (required for Windows XP and Vista recommended for all) QuickTime 7 is required on Windows XP and Vista to support MPEG-4, H.264, and some other media formats. Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. What’s the difference between 32-bit and 64-bit? How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more. That means you get a more secure version of Firefox, one that also crashes a whole lot less. Windows Windows 8.1 Windows 8.1 Installation Media Creation Tool Free Create installation media for Windows. Users on 64-bit Windows who download Firefox can get our 64-bit version by default. Apple QuickTime Windows 8.1 119.99 Upgrade to the latest Windows 8.1 Operating System.
