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.

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

Masking Firefox Add-on

  • 3 replies
  • 1 has this problem
  • 4 views
  • Last reply by wbarkho

more options

I am getting an error that Firefox is not supported on some websites. Is there an add-on or extension that can make the site think I am using internet explorer or edge?

I am getting an error that Firefox is not supported on some websites. Is there an add-on or extension that can make the site think I am using internet explorer or edge?

Chosen solution

All Replies (3)

more options

Hi

Do you have an example of a website where this is happening?

more options

Chosen Solution

more options

RobertJ said

Something like this? - Chameleon https://addons.mozilla.org/en-US/firefox/addon/chameleon-ext/

That's awesome!