Pete Mall

<p>Adds advanced plugin installation options to WordPress. Allows the user to install the development version of a plugin. Adds a link to the top of the plugin install page to install the development version of the plugin. If the development version is not available then a message is displayed at the top of the plugin install page.</p>


WP Plugin Installer

Allows the user to install the development version of a plugin for testing purposes.

chrisnowak

<p>We do a lot of WordPress installs for clients when we set up new websites for them. One hassle we always go through is setting up the development site as a sub-domain or as a complete other domain, and then having to move it to the new domain. Since WordPress uses absolute URLs in posts, links, etc., editing by hand is definitely not an option. We also couldn’t find a really good solution, so I wrote a plugin that will go through all of your posts, pages, options and guids and update your old domain to your new domain!</p>


Change WP URL

Use this only if you're trying to move your WordPress install to another domain.

WP Plugin Installer vs Change WP URL