MrXHellboy

This WordPress plugin (widget) will be shown when visitors are viewing a single post, category page or both. Otherwise, it wont be there at all. 
The widget contains a list of post titles from the same category(s) the visitor is viewing the post from, so the visitor is able to swiftly change posts by clicking on the titles shown. 
Posts published in multiple categories are taken care of just fine. I’ve introduced a new feature in version 1.6 which gives you the possibility to show all the categories the post has been published in or the category where the visitor has been spotted the last time(uses cookie).
The widget can be controlled with the following widget options:
<ul>
<li>Title (before the category name(s))</li>
<li>Exclude category(s) by ID</li>
<li>Exclude categories on: Single, Category, Both, None</li>
<li>Sticky posts on top: Yes | No</li>
<li>Show posts from year: a specific year or all years</li>
<li>Show widget on: categories | single posts | both</li>
<li>Show category title(s): Yes | No</li>
<li>Post has multiple categories – what now: Show all categories | Show the last category viewed</li>
<li>Show how many posts</li>
<li>Single posts view – Order: DESC | ASC</li>
<li>Single post view – Orderby: Author | Category | Date | ID | Random</li>
<li>Category view – Order:?DESC | ASC</li>
<li>Category view – Orderby: Author | Category | Date | ID | Random</li>
<li>Remove/Keep child categories</li>
</ul>
<h3>Development Blog</h3>
<a href="http://online-source.net/category/scripts/wordpress-plugins/" title="Online-Source WordPress plugins" rel="nofollow ugc">Online-Source WordPress plugins</a> 
<a href="http://online-source.net/forums/forum/support/wordpress-plugins/" title="Support forum" rel="nofollow ugc">Support forum</a>

Category Content

This Wordpress plugin (widget) will be shown when visitors are viewing a single post, category page or both. Otherwise, it wont be there at all.

DaisyPlugins

Daisy Titles is a simple WordPress plugin that allows you to customize how your page and post titles appear on the front-end of your website.
With this plugin, you can control over the visibility of titles of pages and single posts on your WordPress website. Whether you want to show or hide titles, ‘Daisy Titles’ has got you covered.
Visibility Features:
<ul>
<li>hide post titles</li>
<li>hide page titles</li>
<li>hide all titles</li>
<li>hide specific post/page titles</li>
</ul>
Styling Features:
<ul>
<li>Change the color of post titles</li>
<li>Adjust the font size of titles</li>
<li>Select from several common web fonts</li>
<li>Choose which post types to apply the styling to (posts, pages, etc.)</li>
</ul>
The plugin includes a user-friendly settings panel in the WordPress admin area and follows all WordPress coding standards for security and performance.
<h3>Additional Notes</h3>
For support or feature requests, please visit <a href="https://daisyplugins.com" rel="nofollow ugc">DaisyPlugins</a>.

Daisy Titles — Style & Hide Page and Post Titles

Customize the appearance of your post titles with colors, font sizes, and font families.

Category Content vs Daisy Titles — Style & Hide Page and Post Titles