This is the bunch of 2 extensions

TRUE SEO Friendly URLs including 404 error page for url manipulation

Visit to our demo site (opencart version 2.2.0.0): http://opencartshops.com/

Following are 2 major points covered in this extension

1. SEO friendly url
   like: http://opencartshops.com/account/login
   http://opencartshops.com/information/contact
2. 404 error page for URl manipulation
   In downloaded opencart

http://opencartshops.com/account/login/tttt
will show the content same as>br/>http://opencartshops.com/account/login
and this is duplicate page content issue
so that to avoid this we have created extension to show 404 error page of opencart
like http://opencartshops.com/account/login/tttt
will show 404 error page