One of the World's Most Popular Web Browsers for Windows

Firefox (64-bit)

Firefox 45.0 (64-bit)

  -  43.39 MB  -  Open Source

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Firefox 45.0 (64-bit).


For those interested in downloading the most recent release of Firefox (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • Firefox 45.0 (64-bit) Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Firefox 45.0 (64-bit) Screenshot 1
  • Firefox 45.0 (64-bit) Screenshot 2
  • Firefox 45.0 (64-bit) Screenshot 3
  • Firefox 45.0 (64-bit) Screenshot 4
  • Firefox 45.0 (64-bit) Screenshot 5

What's new in this version:

New:
- Instant browser tab sharing through Hello
- Tabs synced via Firefox Accounts from other devices are now shown in dropdown area of Awesome Bar when searching
- Synced Tabs button in button bar
- Introduce a new preference (network.dns.blockDotOnion) to allow blocking .onion at the DNS level
- Guarani [gn] locale added

Fixed:
- URLs containing a Unicode-format Internationalized Domain Name (IDN) are now properly redirected
- Various security fixes

Changed:
- Tab Groups (Panorama) feature removed

Developer:
- Ability to filter snapshot output in memory tool
- Fine tune animations by changing the playback rate of animations in the animation-inspector's timeline
- DOMContentLoaded and load events shown in the network monitor timeline
- Added Negative url filtering for the network monitor
- Support for diffing heap snapshots added to the memory tool
- Inspector search now matches results from all content in the page, including subframes
- List of animated properties and keyframes is now displayed when clicking on an animation in the animation-inspector’s timeline

HTML5:
- Push API support, part of Progressive Web Applications
- Support delivery of a Content Security Policy (CSP) via a meta tag
- Web Speech synthesis API
- ES6 Classes

Unresolved:
- On-screen keyboard support was temporarily turned off for Windows 8 and Windows 8.1