Your useragent appears to be Mozilla/5.0 (Gecko) Firefox/64

https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible

That is interesting because it was not until the FF25 upgrade. It worked fine before, I never intentionally did anything to install a 64-bit. My Win7 is 32-bit. Also, that would explain why I can no longer user Firefox to connect to one of my RHEL servers after the upgrade.

Do have to do a complete uninstall of Firefox and re-install to get it back to 32-bit?

--Thanks

Check to make sure it was not simply because your US was overridden for some reason first if you have not.

Sorry, how do I check if "US was overriden"? I'm not sure what this is. Also, I found this. Did it start seeing the hardware has 64-bit and automatically do it?

about:buildconfig Build Machine

w64-ix-slave147 Source

Built from http://hg.mozilla.org/releases/mozilla-release/rev/d20d499b219f Build platform

target

i686-pc-mingw32

The link I posted shows the steps on how you can reset it if it was changed. https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible#w_firefox-is-showing-the-wrong-user-agent

Reseting the useragent did not change it. Is this a bug with version 25? Is the only way to truely fix it to completely uninstall and stay with older versions? Or just alway have to make sure I have the user agent switcher plugin?

--Thanks, Gary

No it is not a known bug with Firefox 25.0 or any other version.

The only other thing I can think of is a proxy or some web filtering software is changing the UA perhaps.

Did you check which user agent is currently seen by web pages?

• http://browserspy.dk/useragent.php

When you say that resetting general.useragent.override did not change it, do you mean that it literally stayed the same? Does that line show in special type (bold or italic) or say in the status column that it is user set or locked?