• Firefox Version 54.0.1 Download
• Firefox Version 52.0.1

• Index of /pub/firefox/releases/ Type Name Size Last Modified; Dir. Dir: 0.10.1/ Dir: 0.10/ Dir: 0.10rc/ Dir: 0.8/ Dir: 0.9.1/.
• Index of /pub/firefox/releases/54.0/win64/ Type Name Size Last Modified; Dir. Dir: ach/ Dir: af/ Dir: an/ Dir: ar/ Dir: as/ Dir: ast/ Dir.
• Download Latest Version PortableApps.comPlatformSetup18.0.paf.exe. Mozilla Firefox, Portable Edition 54.0.1: 2017-07-11: 67. Mozilla Firefox ESR, Portable.

Mozilla Firefox (64-bit) - Mozilla Firefox is a fast, light and tidy open source web browser. At its public launch in 2004 Mozilla Firefox was the first browser to challenge Microsoft Internet Explorer’s dominance.

Firefox Version 54.0.1 Download

We are working on a Selenium IDE for Chrome (install link, source code link) and sometimes we need to download the original Firefox Selenium IDE for compatibility testing. Unfortunately the Mozilla addon website blocks this download - even so the Firefox IDE works just fine in Firefox 54. (It no longer works in Firefox 55 and you will get the 'table view is not available with this format' error when the IDE is launched in Firefox 55 or later.) So for everyone's convenience we host the latest version of the signed XPI on our website:

Download: Original Selenium IDE for Firefox (selenium_ide-2.9.1-fx.xpi)

How to install after download:
Download the XPI and drag & drop it on a Firefox 54 browser window. That is all.

You also need Firefox 54. You can download Firefox 54.0.1 here or, better, use Firefox PORTABLE 54.0.1. To keep yourself secure, install Firefox 54 portable just for automated testing with the Selenium IDE. You should install the portable version of Firefox in a separate directory from your main Firefox. This way you can keep auto-updates on for your regular Firefox. This makes sure you are safe when browsing the web.

I am running version 54.0.1 (32-bit) on Windows 10. I often have problems opening Firefox because old Firefox processes are still running in Windows (despite the application having been closed properly from a UI perspective).

Firefox Version 52.0.1

I have tried to upgrade many times. I can't upgrade automatically because the restart of Firefox fails after the update downloads. If I use the installer that I downloaded, I can get to a new version for one session -- today it was 55.0.3 (64-bit) -- but after i close Firefox and re-open it again, I somehow magically revert to the older version (54.0.1).

How can I update to the latest version of Firefox for good and hopefully get past the issue with processes not closing properly in Windows?

Thank you for your help.