Corey

<a href="http://www.add-art.org/" rel="nofollow ugc">Add-Art</a> is a <a href="http://www.mozilla.com/en-US/firefox/" rel="nofollow ugc">Firefox</a> plug-in that replaces website advertising. Created with support from <a href="http://eyebeam.org/" rel="nofollow ugc">Eyebeam</a> and <a href="http://rhizome.org/" rel="nofollow ugc">Rhizome</a>, Add-Art releases new art shows every two weeks and strives to feature contemporary artists and curators.
The plugin works alongside <a href="http://adblockplus.org/" rel="nofollow ugc">AdBlock Plus</a>, which blocks online ads, and simply replaces that blank space with art images. AdBlock Plus is the most popular of the thousands of available add-ons for Firefox with 18 million total downloads (as of May 2008) and over 250,000 downloads per week.
For many, replacing ads with blank space would be enough. AddArt attempts to do something more interesting than just blocking ads – it turns your browser into an art gallery. Every time you visit the New York Times online or check the weather you’ll also see a spattering of images by a young contemporary artist.
The project is supported by <a href="http://add-art.org/" rel="nofollow ugc">add-art.org</a> which provides information on the current artists and curator along with a schedule of past and upcoming AddArt shows. Each 2 weeks will include 5-8 artists selected by emerging and established curators.
Images need to be cropped to standard banner sizes or can be custom made for the project. One group of images is shown per page. The curatorial duty is passed among curators through recommendations, word of mouth, and solicitations to the Add-Art site.
With the overwhelming popularity of adblockers, if Add-Art were to attract 5% of existing users, the numbers would be in the hundreds of thousands. Add-Art can bring contemporary art to the desktops of all types of people at home and in their workplace – all over the world.
Would you like to see art instead of ads as you browse sites online? Go to <a href="http://add-art.org/" rel="nofollow ugc">add-art.org</a> and download the plugin for your Firefox browser now.

Add-Art

Add-Art is a Firefox plug-in that replaces website advertising, created with support from Eyebeam and Rhizome.

webvitaly

kudlav

This is fork of successful Anti-spam plugin v5.5 written by webvitalii, for more info visit <a href="https://github.com/kudlav/anti-spam/" rel="nofollow ugc">GitHub Fork</a>. 
From version 5.6 maintained by kudlav.
<ul>
<li><a href="https://github.com/kudlav/anti-spam/" rel="nofollow ugc">GitHub</a></li>
</ul>
Anti-spam Reloaded plugin blocks 100% of automatic spam messages in comments section and also blocks all trackbacks.No captcha required.
Plugin is simple and easy to use: just install it and it just works.
Blocked comments can be stored in the Spam area and converted to regular comments if needed.
Anti-spam Reloaded plugin is GDPR compliant and does not store any other user data except of the behaviour mentioned above.
Plugin blocks spam only in comments section.. 
Plugin does not block manual spam (submitted by spammers manually via browser).
<h3>Compatibility</h3>
All modern browsers and IE11+ are supported. 
Anti-spam Reloaded plugin works with disabled JavaScript. Users with disabled JavaScript should manually fill current year before submitting the comment.
Server compatibility:
<ul>
<li>WordPress 3.3 – 6.5</li>
<li>PHP 5.6 – 8.2</li>
<li>Doesn’t use jQuery</li>
</ul>
Plugin is incompatible with:
<ul>
<li>Disqus</li>
<li>Jetpack Comments</li>
<li>AJAX Comment Form</li>
<li>bbPress</li>
</ul>
If site has caching plugin enabled and cache is not cleared or if theme does not use ‘comment_form’ action 
and there is no plugin inputs in comments form – plugin tries to add hidden fields automatically using JavaScript.
<h3>How does it work?</h3>
The blocking algorithm is based on 2 methods: ‘invisible js-captcha’ and ‘invisible input trap’ (aka honeypot technique).
<h4>‘invisible js-captcha’</h4>
The ‘invisible js-captcha’ method is based on fact that bots does not have JavaScript on their user-agents. 
Extra hidden field is added to comments form. 
It is the question about the current year. 
If the user visits site, than this field is answered automatically with JavaScript, is hidden by JavaScript and CSS and invisible for the user. 
If the spammer will fill year-field incorrectly – the comment will be blocked because it is spam.
<h4>‘invisible input trap’</h4>
The ‘invisible input trap’ method is based on fact that almost all the bots will fill inputs with name ’email’ or ‘url’. 
Extra hidden field is added to comments form. 
This field is hidden for the user and user will not fill it. 
But this field is visible for the spammer. 
If the spammer will fill this trap-field with anything – the comment will be blocked because it is spam.

Add-Art vs Anti-spam Reloaded