Or, embed this snippet using GenerateWP WordPress Plugin.

Download

Clone

WordPress Outdated Browser

Show a message if your browser is updated

=== WP Outdated Browser ===
Contributors: deblynprado
Tags: Browser, Outdated, Message Outdated, CSS, CSS3, HTML
Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=A7JF6A9UTZTQC&lc=BR&item_name=Deblyn%20Prado&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted
Requires at least: 3.6.0
Tested up to: 3.9.1
Stable tag: trunk
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Show a message if the user using a outdated browser.

== Description ==
So, you're tired of people visiting your modern website with an outdated browser and not doing anything about it. Maybe they aren't "power" users, maybe it's your auntie running a last century browser trying to see awesome CSS3 animations and transforms. Let the user know that’s an outdated browser, and advise them on a better one.

With this solution you can check if the user’s browser can handle your website. If not, it will show a cool looking notice advising the user to update the browser. It'll be up to him/her to decide if he upgrades or not. Don't force the user!

This plugin is a version of [Outdated Browser Projetct](http://outdatedbrowser.com/) created by [Bürocratik](https://github.com/burocratik)

== Installation ==
* Upload the "WP Outdated Browser" directory to the "/wp-content/plugins/" directory
* Activate the plugin through the "Plugins" menu in WordPress

== Frequently Asked Questions ==
= Whats happened if my user is using a updated browser? = 
Nothing! This plugin just works if your using an outdated browser.

= What are the languages officially supported? =
Actually the alert message can be show in English, Portuguese, Finnish, Italian and Dutch

= How can I change the language of the message? =
The plugin get the language default of your WordPress installation. If you want use this plugin in another language you need install some plugin of translation.

== Screenshots ==
1. WP Outdated Browser Options Page

== Changelog ==
2.0.0 - 06/07/2014
* Adding multi language support
* Enable custom options via admin panel
* Core updated to v1.0.2

1.0.0 - 28/06/2014
* First version

== Upgrade Notice ==
= New version 2.0.0!!!! =

Now you can customize the layout of the alert by your Administration area! Select the color of the text and the background, press save and done!!  

In this version we add native support for some languages: English, Portuguese, Italian, Finnish and Deutsch.
The plugin will respect the default language of your WordPress installation. If you're using WordPress in some of languages your alert message will be translated automatically!

Be tuned! We will add more languages very soon!