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XF 1.3 Enabling Use Full Friendly URLs


I installed the forum and when I go to the settings and want to enable the "Use Full Friendly URLs" option and I go to my forum main page it wants to start the installation again. What am I doing wrong?


XenForo moderator
Staff member
What do you mean by your "main page"?

The forum index or a landing page?

What is the link to your site?

What is the content of your .htaccess file?
Yes, I meant the index page. But I think it might be some kind of browser issue, because when I switched to Chrome the forum was ok.

I installed the forum from Firefox and whenever I try to access the forum it redirects me to the install page.

This is the content of the .htaccess file:

#    Mod_security can interfere with uploading of content such as attachments. If you
#    cannot attach files, remove the "#" from the lines below.
#<IfModule mod_security.c>
#    SecFilterEngine Off
#    SecFilterScanPOST Off

ErrorDocument 401 default
ErrorDocument 403 default
ErrorDocument 404 default
ErrorDocument 500 default

<IfModule mod_rewrite.c>
    RewriteEngine On

    #    If you are having problems with the rewrite rules, remove the "#" from the
    #    line that begins "RewriteBase" below. You will also have to change the path
    #    of the rewrite to reflect the path to your XenForo installation.
    RewriteBase /forum

    #    This line may be needed to enable WebDAV editing with PHP as a CGI.
    #RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    RewriteCond %{REQUEST_FILENAME} -f [OR]
    RewriteCond %{REQUEST_FILENAME} -l [OR]
    RewriteCond %{REQUEST_FILENAME} -d
    RewriteRule ^.*$ - [NC,L]
    RewriteRule ^(data/|js/|styles/|install/|favicon\.ico|crossdomain\.xml|robots\.txt) - [NC,L]
    RewriteRule ^.*$ index.php [NC,L]


XenForo moderator
Staff member
If it works in Chrome then it could be a browser cache issue.

Force clear the cache in Firefox - CTRL+F5.