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.

Criteria or check when we see the error "You are using an older version of firefox"

dimpi554
dimpi554
more options

Criteria or check when we see the error "You are using an older version of firefox that is no longer supported and may be insecure" on sites like facebook. Currently firefox 8.0 does not give this error but 3.5.4 does. What is the check performed by sites for this error?

Criteria or check when we see the error "You are using an older version of firefox that is no longer supported and may be insecure" on sites like facebook. Currently firefox 8.0 does not give this error but 3.5.4 does. What is the check performed by sites for this error?

All Replies (1)

the-edmeister
the-edmeister
  • Moderator
more options

Most web sites use the User Agent, which is sent in the header of the request for delivering the page. The user agent of the browser you used to post here is
Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0