On Aug 14th 11 PM ET/Aug 15th 03:00 UTC, due to scheduled Firefox Account server maintenance, users may not be able to sign in or create a new subscription. This is expected to last approximately 30 minutes. Status updates can be found at https://status.vpn.mozilla.org or https://status.relay.firefox.com.

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

wrong version of Firefox reported via www.whatismybrowser.com

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by address201

more options

When logging into my financial institutions website it reports back that I have version 91... of the Firefox browser installed and that it isn't supported. I actually have version 101.0.1 as reported by the browser itself. I called them and they asked me to check my version of Firefox by using www.whatismybrowser.com and it reports back that I'm running version 91. Can you help?

When logging into my financial institutions website it reports back that I have version 91... of the Firefox browser installed and that it isn't supported. I actually have version 101.0.1 as reported by the browser itself. I called them and they asked me to check my version of Firefox by using www.whatismybrowser.com and it reports back that I'm running version 91. Can you help?
Attached screenshots

Chosen solution

You likely have enabled the "Resist Fingerprinting" in Firefox as that currently gives you a Firefox 91.0 ESR user agent. This will change with Firefox 102.0

Using Resist Fingerprinting in Firefox has its disadvantages as this affects the user agent, but also places you in the UTC timezone and gives you rounded screen dimensions and can give font issues with locally installed fonts and disables site specific zoom.

Read this answer in context 👍 0

All Replies (4)

more options

Note that this hasn't been a problem for me before and my browser is automatically updated so this has only recently become a problem. Maybe with the last update of Firefox (or two).

Helpful?

more options

Got NScript blockers? You left out more on the screenshot.

Helpful?

more options

Chosen Solution

You likely have enabled the "Resist Fingerprinting" in Firefox as that currently gives you a Firefox 91.0 ESR user agent. This will change with Firefox 102.0

Using Resist Fingerprinting in Firefox has its disadvantages as this affects the user agent, but also places you in the UTC timezone and gives you rounded screen dimensions and can give font issues with locally installed fonts and disables site specific zoom.

Helpful?

more options

"Resist Fingerprinting" was enabled and disabling took care of the issue with my financial institution. As well, once I installed Firefox 102.0 this morning, re-enabled "resist Fingerprinting" and rechecked on whatismybrowser.com it came up with the newer version. My financial institution doesn't come up with unsupported browser message anymore either. Thanks you!

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.