This is an archived page. It's not actively maintained.


The preference browser.urlbar.trimURLs controls whether the protocol http and the trailing slash behind domain name (if the open page is exactly the domain name) are hidden.

  • Type:boolean
  • Default value:  true
  • Exists by default: yes
  • Application support:Firefox 7.0
  • Status: Active; last updated 2012-04-03
  • Introduction: Pushed to Nightly on 2011-06-23
  • Bugs: bug 665580 


true (default)
If the active url is exactly the domain name, the trailing slash (/) behind the top level domain will be hidden. If the address starts with http:// and neither starts with a ftp. subdomain nor contains @ (usually for ftp login information), the http:// prefix will be hidden.

Examples: becomes, becomes and remains unchanged.
All parts of the url are shown.