Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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.

Some websites think I am using a very old Firefox version and won't work. I'm using 9.0

  • 2 replies
  • 2 have this problem
  • 1 view
  • Last reply by mgorman

mgorman
mgorman
more options

This even happens on some Firefox help pages! Some plugins also refuse to load, citing an obsolete FF version. Some websites tell me I am using Firefox 1.0.7, which I haven't used for years. The 'about FF' pulldown confirms that I am running FF 9.0.1

Even this page (below) under the 'We've made some educated guesses about your current browser and operating system' thinks I am running FF 1.0.7. Aargh!

This even happens on some Firefox help pages! Some plugins also refuse to load, citing an obsolete FF version. Some websites tell me I am using Firefox 1.0.7, which I haven't used for years. The 'about FF' pulldown confirms that I am running FF 9.0.1 Even this page (below) under the 'We've made some educated guesses about your current browser and operating system' thinks I am running FF 1.0.7. Aargh!

Chosen solution

Your browser may be misidentifying itself. This sometimes is caused by an add-on.

Although this article is a bit old now, the procedure it describes still is the best one I know of for fixing this problem: Websites or add-ons incorrectly report incompatible browser | Troubleshooting | Firefox Help.

Any luck?

Read this answer in context 👍 2

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Chosen Solution

Your browser may be misidentifying itself. This sometimes is caused by an add-on.

Although this article is a bit old now, the procedure it describes still is the best one I know of for fixing this problem: Websites or add-ons incorrectly report incompatible browser | Troubleshooting | Firefox Help.

Any luck?

mgorman
mgorman Question owner
more options

It works! I just tried two websites that never allowed me to use FF due to an old browser version, and they now work. Thanks a lot!