The linked readme doesn't explain how to edit LocalSettings.php. Or does the php code in the readme has to be copied into the LocalSettings.php?
require_once("$IP/extensions/PrefSwitch/PrefSwitch.php");
This post was posted by Krinkle, but signed as Marcin Łukasz Kiejzik.
Product Version MediaWiki 1.18.1 PHP 5.3.3 (cgi-fcgi) MySQL 5.0.51a-24+lenny5-log PrefSwitch (Version 0.1.2) $wgDefaultSkin = "vector";
Installation instruction followed: http://www.mediawiki.org/wiki/Extension:PrefSwitch http://www.mediawiki.org/wiki/Manual:Update.php
Problem: Although the extension is installed, and php restarted (locally with a terminal, and hosted via web process), the extension does not appear at all. Only the standard vector MediaWiki 1.18.1 edit tool is present when editing.
I'm blocked with this. I really do not know how to solve it. I've read dozens of pages about.
Thanks for your help
Probably help if you told us how you had it configured (like do you have $wgPrefSwitchShowLinks = true; at the very bottom of your LocalSettings.php - which is needed to enable the link at the top of the page)
Note, that extension was mostly a 1 time thing needed by Wikipedia. I don't think anyone is currently maintaining it, so there could be some bit-rot with the extension itself.