We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Web sites and email will not recognize version 25 of FireFox. Sites say I have an old version and request I update .

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by James

ddcarden
ddcarden
more options

I updated my Fire Fox to version 25 several months ago. I then started getting messages from websites and my yahoo email account that I was using an outdated version. I then updated to the beta version 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 have cleared the cache and cookies with no effect. Do I need to uninstall Fire Fox and start all over again.

I updated my Fire Fox to version 25 several months ago. I then started getting messages from websites and my yahoo email account that I was using an outdated version. I then updated to the beta version 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 have cleared the cache and cookies with no effect. Do I need to uninstall Fire Fox and start all over again.

Chosen solution

Before Firefox 4.0 some extensions added stuff to the useragent which can make the UA stay stuck at that version. Your UA appears 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https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible#w_firefox-is-showing-the-wrong-user-agent

Read this answer in context 👍 0

All Replies (1)

James
James
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

Before Firefox 4.0 some extensions added stuff to the useragent which can make the UA stay stuck at that version. Your UA appears 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https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible#w_firefox-is-showing-the-wrong-user-agent

Modified by James