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

want to download 3.6 website is not compatible with 4.0

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by alicelewis

more options

A credit card site is not compatible with the newer Firefox 4.0 and requires 3.6. I cannot find it available on your website. I am currently using Explorer 9, and this is the second issue of incompatibility with that and both online companies suggested Firefox 3.6. Where is it?

A credit card site is not compatible with the newer Firefox 4.0 and requires 3.6. I cannot find it available on your website. I am currently using Explorer 9, and this is the second issue of incompatibility with that and both online companies suggested Firefox 3.6. Where is it?

All Replies (2)

more options

Why are internet servers making sites incompatible with major websites?