Users on 64-bit Windows who download Firefox can get our 64-bit version by default. That means you get a more secure version of Firefox, one that also crashes a whole lot less. How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more.
Yesterday I updated Java to 'Version 8 Update 131 (build 1.8.0131-b11)', and I can longer use Java plugins on any version of Firefox, which means I can no longer access the VPN. It was my understanding that The ESR versions of Firefox would continue to support Java.
What’s the difference between 32-bit and 64-bit?
Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. 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. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit.
- Jun 10, 2019 How to Enable Java in Firefox. This wikiHow teaches you how to turn on Java support in Firefox, both on a per-website basis and across the entire browser, as well as how to enable JavaScript for your Firefox browser. Download and Install Mozilla Firefox. Sign Out of Mozilla Firefox On PC. Downgrade Firefox.
- Firefox brings your favorite features and security to your Android devices. Learn how to install it on your phone or tablet so you can browse the Web quickly and privately. Install through your phone's marketplace. Install Firefox through your phone's official marketplace to ensure that you get the best version of Firefox for your device.
How do you get 64-bit Firefox?
If you’re running 64-bit Windows (here’s how to check), your Firefox may already be 64-bit. Check your Firefox version (in the “About Firefox” window) and look for “(32-bit)” or “(64-bit)” after the version number:
- If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit.
- If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more). You can still manually install 64-bit Firefox, if you choose.
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.
Please ensure that you have downloaded Java from the official website. Also please ensure that you close Firefox completely when installing Java, as it may not install correctly if Firefox remains open.
If the above does not help, please try refreshing Firefox's plugin list. To do so, please follow these steps:
- Close Firefox
- Open your profile folder in Windows explorer
- Rename the
pluginreg.dat
file topluginreg.dat.old
- Open Firefox
This should rebuild your Firefox file that detects what plugins you have installed. You may need to try reinstalling Java if it still does not display.
Download Mozilla Firefox Java App
Download Mozilla Firefox For Java Mobile Phone
For more information about your Firefox profile and how to locate it, please refer to this Mozilla support article: