Ramoonus

This plugin adds the Modernizr to your WordPress installation. 
Modernizr is a small JavaScript library that detects the availability of native implementations for next-generation web technologies, i.e. features that stem from the HTML5 and CSS3 specifications. Many of these features are already implemented in at least one major browser (most of them in two or more), and what Modernizr does is, very simply, tell you whether the current browser has this feature natively implemented or not.
For documentation visit http://www.modernizr.com/docs/

Modernizr for WordPress

The 2.8.4 version inserts broken javascript link. I posted a message about this in the support section for the plugin and the author has not responded or fixed the problem. Now, any site that I've added this plugin to can be broken if the user runs an update. 

Instead, if you need Modernizr, insert the following into your header.php file just after <?php wp_head(); ?>:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.min.js"></script>

Doesn't work - Plugin Defunct

This plugin adds the Modernizr to your WordPress installation.

bdoga

tdawg2

The Browser Blocker Plugin puts the power in your hands to control what browsers(versions) can access your website content and which ones cannot. For the browsers(versions) that you block, the user has control over the splash screen that their clients receive. There is a “simple” mode for those who just want to block some browsers with the default settings, and there is an “advanced” mode for those who want to have a little more control over what is displayed to their clients.
If you would like to see more of our plugins feel free to drop by the <a href="http://www.macnative.com/development/browser-blocker/" rel="nofollow ugc">Browser Blocker plugin page</a> or the <a href="http://www.macnative.com/" rel="nofollow ugc">Macnative.com Homepage</a>.
This plugin utilizes the <a href="http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/" rel="nofollow ugc">Browser detection library</a> that was built by <a href="http://chrisschuld.com/" rel="nofollow ugc">Chris Schuld</a> A big thanks to him for his major contribution. 
A big thanks to Vistaicons.com for creating the Web Browsers Icon Set that is used with the plugin. <a href="http://www.vistaicons.com/" rel="nofollow ugc">Follow the link to see more of their icons</a>.
Another big thanks to Yusuke Kamiyamane for the use of many of his Fugue Icon set icons throughout the Plugins Administrator, <a href="http://p.yusukekamiyamane.com/" rel="nofollow ugc">please visit their homepage</a>.

Browser Blocker

Browser Blocker allows you to pick and choose which browsers(versions) can access your web page and which ones are given a blocked splash screen.

Modernizr for WordPress vs Browser Blocker