Web sites and email won't recognize the 25 Firefox version. Sites to say I have an old version and ask for that update.

I have update my Fire Fox version 25 several months ago. I then started to receive messages from Web sites and my yahoo email account I was using an outdated version. Then, I updated to beta 26 and I still have the same problem. I am using Windows 7 on my PC. Never had any problems with Fire Fox until the 25 upgrade. I deleted the cache and cookies without effect. Should I uninstall Fire Fox and start all over again.

Before Firefox 4.0 a few extensions added stuff to the useragent which can make the AU stay stuck in this version. Your AU seems to be user Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; RV:1.9.2.16) Gecko/20110319 YFF35 Firefox/3.6.16 FBSMTWB

https://support.Mozilla.org/en-us/KB/websites-say-Firefox-outdated-or-incompatible#w_firefox-is-showing-the-wrong-user-agent

Tags: Firefox

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